Solving Systems of Equations by Elimination

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:

7x+y=-9

-3x-y=5

• No solution

• (1,8)

• (-2,-3)

• (-1,-2)

Solve by elimination:

4x+4y=4

3x+4y=10

• (7,-6)

• (-6,7)

• (6,7)

• (7,6)

Solve by elimination

-12x-10y= 0

6x+5y= -1

• infinite solutions

• (0,0)

• no solution

• (2,1)

Solve by elimination

4x-6y= -6

-2x-12y= -12

• (0,1)

• (1,0)

• (1,1)

• (2,1)

Solve the system by elimination.

5x + 8y = -12

3x + 5y = -7

• (1, -10)

• No solution

• (-4, 1)

• (1, 10)

Solve by elimination

2x+9y= -7

6x-3y= 9

• (-1, -1)

• (2,-1)

• (1,1)

• (1,-1)