Solve using elimination: 4 x + 9 y = 28 4x+9y=28 4 x + 9 y = 2 8 − 4 x − y = − 28 -4x-y=-28 − 4 x − y = − 2 8

( 7 , 0 ) \left(7,0\right) ( 7 , 0 )

( − 7 , 0 ) \left(-7,0\right) ( − 7 , 0 )

( 6 , 0 ) \left(6,0\right) ( 6 , 0 )

( 0 , 7 ) \left(0,7\right) ( 0 , 7 )

Solve by elimination: − 9 x − 4 y = − 20 -9x-4y=-20 − 9 x − 4 y = − 2 0 5 x + 4 y = 4 5x+4y=4 5 x + 4 y = 4

( 4 , − 4 ) \left(4,-4\right) ( 4 , − 4 )

( − 4 , 4 ) \left(-4,4\right) ( − 4 , 4 )

( 4 , 4 ) \left(4,4\right) ( 4 , 4 )

( − 4 , − 4 ) \left(-4,-4\right) ( − 4 , − 4 )

Solve by elimination: 7 x + y = − 9 7x+y=-9 7 x + y = − 9 − 3 x − y = 5 -3x-y=5 − 3 x − y = 5

( − 1 , − 2 ) \left(-1,-2\right) ( − 1 , − 2 )

( 1 , 8 ) \left(1,8\right) ( 1 , 8 )

( − 2 , − 3 ) \left(-2,-3\right) ( − 2 , − 3 )

Solve by elimination: 3 x + y = 19 3x+y=19 3 x + y = 1 9 2 x − y = 6 2x-y=6 2 x − y = 6

( 5 , 4 ) \left(5,4\right) ( 5 , 4 )

( 5 , 14 ) \left(5,14\right) ( 5 , 1 4 )

( 4 , 5 ) \left(4,5\right) ( 4 , 5 )

( 14 , 5 ) \left(14,5\right) ( 1 4 , 5 )

Solve using elimination: 4 x + 8 y = 20 4x+8y=20 4 x + 8 y = 2 0 − 4 x + 2 y = − 30 -4x+2y=-30 − 4 x + 2 y = − 3 0

( 7 , − 1 ) \left(7,-1\right) ( 7 , − 1 )

( − 7 , 1 ) \left(-7,1\right) ( − 7 , 1 )

( 2 , − 5 ) \left(2,-5\right) ( 2 , − 5 )

( − 2 , 5 ) \left(-2,5\right) ( − 2 , 5 )

Solve the system by elimination: − 4 x − 4 y = 0 -4x-4y=0 − 4 x − 4 y = 0 4 x + 4 y = 0 4x+4y=0 4 x + 4 y = 0

( − 6 , − 4 ) \left(-6,-4\right) ( − 6 , − 4 )

( − 6 , 10 ) \left(-6,10\right) ( − 6 , 1 0 )

Solve the system by elimination: 7 x + y = − 9 7x+y=-9 7 x + y = − 9 − 3 x − y = 5 -3x-y=5 − 3 x − y = 5

( − 1 , − 2 ) \left(-1,-2\right) ( − 1 , − 2 )

( 1 , 8 ) \left(1,8\right) ( 1 , 8 )

( − 2 , − 3 ) \left(-2,-3\right) ( − 2 , − 3 )

Solve the system by elimination: 3 x + y = 19 3x+y=19 3 x + y = 1 9 2 x − y = 6 2x-y=6 2 x − y = 6

( 5 , 4 ) \left(5,4\right) ( 5 , 4 )

( 5 , 14 ) \left(5,14\right) ( 5 , 1 4 )

( 4 , 5 ) \left(4,5\right) ( 4 , 5 )

( 14 , 5 ) \left(14,5\right) ( 1 4 , 5 )

Solve the system by elimination: x + 6 y = 17 x+6y=17 x + 6 y = 1 7 x − 3 y = 8 x-3y=8 x − 3 y = 8

( 11 , 1 ) \left(11,1\right) ( 1 1 , 1 )

( 5 , 2 ) \left(5,2\right)_{ } ( 5 , 2 )

( 1 , 11 ) \left(1,11\right) ( 1 , 1 1 )

Solve the system by elimination: x + 4 y = − 3 x+4y=-3 x + 4 y = − 3 x + 7 y = − 12 x+7y=-12 x + 7 y = − 1 2

( 9 , − 3 ) \left(9,-3\right) ( 9 , − 3 )

( − 3 , 9 ) \left(-3,9\right) ( − 3 , 9 )

( 3 , 9 ) \left(3,9\right) ( 3 , 9 )

( 9 , 3 ) \left(9,3\right) ( 9 , 3 )

Solve the system by elimination: 3 x + y = − 21 3x+y=-21 3 x + y = − 2 1 x + y = − 5 x+y=-5 x + y = − 5

( − 8 , 3 ) \left(-8,3\right) ( − 8 , 3 )

( − 3 , 8 ) \left(-3,8\right) ( − 3 , 8 )

( 8 , − 3 ) \left(8,-3\right) ( 8 , − 3 )

( 3 , − 8 ) \left(3,-8\right) ( 3 , − 8 )

Solve the system by elimination: − 8 x − 10 y = 20 -8x-10y=20 − 8 x − 1 0 y = 2 0 − 8 x − 6 y = − 4 -8x-6y=-4 − 8 x − 6 y = − 4

( 5 , − 6 ) \left(5,-6\right) ( 5 , − 6 )

( 6 , 5 ) \left(6,5\right) ( 6 , 5 )

( − 6 , − 5 ) \left(-6,-5\right) ( − 6 , − 5 )

Solve the system by elimination: 2 x + 7 y = 11 2x+7y=11 2 x + 7 y = 1 1 2 x + 3 y = 7 2x+3y=7 2 x + 3 y = 7

( 2 , 1 ) \left(2,1\right) ( 2 , 1 )

( − 2 , − 1 ) \left(-2,-1\right) ( − 2 , − 1 )

Solve the system by elimination: 4 x + 8 y = 20 4x+8y=20 4 x + 8 y = 2 0 − 4 x + 2 y = − 30 -4x+2y=-30 − 4 x + 2 y = − 3 0

( 7 , − 1 ) \left(7,-1\right) ( 7 , − 1 )

( − 7 , 1 ) \left(-7,1\right) ( − 7 , 1 )

( 2 , − 5 ) \left(2,-5\right) ( 2 , − 5 )

( − 2 , 5 ) \left(-2,5\right) ( − 2 , 5 )

Solve the system by elimination: − 6 x + 5 y = 1 -6x+5y=1 − 6 x + 5 y = 1 6 x + 4 y = − 10 6x+4y=-10 6 x + 4 y = − 1 0

( − 1 , − 1 ) \left(-1,-1\right) ( − 1 , − 1 )

( 1 , 1 ) \left(1,1\right) ( 1 , 1 )

( − 1 , 1 ) \left(-1,1\right) ( − 1 , 1 )

( 1 , − 1 ) \left(1,-1\right) ( 1 , − 1 )

Elimination Day 1

Authored by Jennifer Woodard

Mathematics

9th Grade

CCSS covered

Used 32+ times

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15 questions

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MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Solve using elimination:
$4x+9y=28$
$-4x-y=-28$

$\left(-7,0\right)$

$\left(6,0\right)$

$\left(0,7\right)$

$\left(7,0\right)$

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Solve by elimination:
$-9x-4y=-20$
$5x+4y=4$

$\left(-4,4\right)$

$\left(4,4\right)$

$\left(4,-4\right)$

$\left(-4,-4\right)$

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Solve by elimination:
$7x+y=-9$
$-3x-y=5$

No solution

$\left(1,8\right)$

$\left(-2,-3\right)$

$\left(-1,-2\right)$

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Solve by elimination:
$3x+y=19$
$2x-y=6$

$\left(5,14\right)$

$\left(4,5\right)$

$\left(5,4\right)$

$\left(14,5\right)$

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Solve using elimination:
$4x+8y=20$
$-4x+2y=-30$

$\left(-7,1\right)$

$\left(2,-5\right)$

$\left(-2,5\right)$

$\left(7,-1\right)$

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Solve the system by elimination:
$-4x-4y=0$
$4x+4y=0$

$\left(-6,-4\right)$

Infinitely many solutions

$\left(-6,10\right)$

No Solution

Tags

CCSS.8.EE.C.8B

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Solve the system by elimination:
$7x+y=-9$
$-3x-y=5$

No solution

$\left(1,8\right)$

$\left(-2,-3\right)$

$\left(-1,-2\right)$

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Solve the system by elimination:
$3x+y=19$
$2x-y=6$

$\left(5,14\right)$

$\left(4,5\right)$

$\left(5,4\right)$

$\left(14,5\right)$

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Solve the system by elimination:
$x+6y=17$
$x-3y=8$

$\left(5,2\right)_{ }$

$\left(11,1\right)$

$\left(1,11\right)$

No Solution

Tags

CCSS.8.EE.C.8B

10.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Solve the system by elimination:
$x+4y=-3$
$x+7y=-12$

$\left(-3,9\right)$

$\left(9,-3\right)$

$\left(3,9\right)$

$\left(9,3\right)$

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

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Elimination Day 1

Solve using elimination: 4x+9y=284x+9y=284x+9y=28 −4x−y=−28-4x-y=-28−4x−y=−28

Solve by elimination: −9x−4y=−20-9x-4y=-20−9x−4y=−20 5x+4y=45x+4y=45x+4y=4

Solve by elimination: 7x+y=−97x+y=-97x+y=−9 −3x−y=5-3x-y=5−3x−y=5

Solve by elimination: 3x+y=193x+y=193x+y=19 2x−y=62x-y=62x−y=6

Solve using elimination: 4x+8y=204x+8y=204x+8y=20 −4x+2y=−30-4x+2y=-30−4x+2y=−30

Solve the system by elimination: −4x−4y=0-4x-4y=0−4x−4y=0 4x+4y=04x+4y=04x+4y=0

Solve the system by elimination: 7x+y=−97x+y=-97x+y=−9 −3x−y=5-3x-y=5−3x−y=5

Solve the system by elimination: 3x+y=193x+y=193x+y=19 2x−y=62x-y=62x−y=6

Solve the system by elimination: x+6y=17x+6y=17x+6y=17 x−3y=8x-3y=8x−3y=8

Solve the system by elimination: x+4y=−3x+4y=-3x+4y=−3 x+7y=−12x+7y=-12x+7y=−12

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Solve using elimination:
$4x+9y=28$
$-4x-y=-28$

Solve by elimination:
$-9x-4y=-20$
$5x+4y=4$

Solve by elimination:
$7x+y=-9$
$-3x-y=5$

Solve by elimination:
$3x+y=19$
$2x-y=6$

Solve using elimination:
$4x+8y=20$
$-4x+2y=-30$

Solve the system by elimination:
$-4x-4y=0$
$4x+4y=0$

Solve the system by elimination:
$7x+y=-9$
$-3x-y=5$

Solve the system by elimination:
$3x+y=19$
$2x-y=6$

Solve the system by elimination:
$x+6y=17$
$x-3y=8$

Solve the system by elimination:
$x+4y=-3$
$x+7y=-12$