Solve a System of Equations Using Elimination

Solve using Elimination Method:

9x - 4y = 7

x - 4y = -17

• (-1,5)

• (-7,5)

• (7,5)

• (3,5)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve by elimination:

7x - 9y = 29

7x + 2y = - 15

• (-4,-1)

• (-1.-4)

• (-1,4)

• (-1,6)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve for x

Hint: Solve using Elimination Method:

• 1/2

• 1

• -1

• -1/2

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve by elimination.

6x - y = 2

-3x - 6y = 12

• (2,0)

• no solution

• (0,-2)

• infinite solutions

Tags

CCSS.8.EE.C.8B

solve using elimination

• (3,-2)

• (2,4)

• (3,4)

• (2,3)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

________________ are two or more equations that have the same variables and work together.

• graphing lines

• elimination method

• system of equations

• table

• slope intercept form

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What is the solution to this system of equations?

4x + y = 6

x - 2y = 6

• (2,-2)

• (1,2)

• ( 1/2 , 4 )

• (-2,2)

• (2, 4)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

solve the system

• No solution

• infinite solutions

• (0,0)

• (5,1)

• (5,0)

Tags

CCSS.8.EE.C.8B

x = -3y - 17

2x + 3y = -7

• (1, -2)

• (3, 0)

• (-5, -2)

• (10 , -9)

• (10, 2)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Which variable is the easiest to eliminate in this system?

• x

• y

• both

• neither

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6