Solve System of Equations Elimination

 4x + 8y = 20
-4x + 2y = -30

• (-7,1)

• (2,-5)

• (-2,5)

• (7,-1)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve by elimination:
4x+9y=28
-4x-y=-28

• (-7,0)

• (6,0)

• (-6,0)

• (7,0)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve by elimination
-6x + 5y = 1
6x + 4y = -10

• (1,-1)

• (0,-1)

• (1,1)

• (-1,-1)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve the system by elimination.  

12x + 36y = −3 
−12x − 36y = 0 

• (10, 1) 

• (−10, −1) 

•  (10, −1) 

•  No solution 

Tags

CCSS.8.EE.C.8B

What would be the first step in finding the solution with elimination?

• cross out the 3y and -3y

• cross out the 4x and x

• change all the signs of the second equation

• add 1 and -11

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

what is the resulting combined equation for the system below?

• -18x = 18

• y = 18

• 2y= 18

• 18x + 2y = 18

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What is the resulting combined equation to the following system:
5x - 4y = 11
5x + 4y = -14

• 5x = -3

• 10y = -3

• 10x = -3

• 10x = -25

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve for x.

(just the number)

Mathematical Equivalence

OFF

Tags

CCSS.HSA.REI.C.9

-2x + 6y = -20

2x + 5y = -11

what is the combined resulting equation?

• x + 11y = -31

• 11y = -31

• 11x = -31

• 4x + 11y = -31

• i need tutorials

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What is the result when adding the equations for elimination method?
5x - 4y = 11
5x + 4y = -14

• 5x = -3

• 10y = -3

• 10x = -3

• 10x = -25

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6