2.5 Post test

Solve by elimination 
5x+6y= -10
3x-2y= -6

• (-2,0)
• (0,-2)
• (2,0)
• (0,2)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve for x and y
3x + 2y = 16
7x + y = 19

• (-2,5)
• (-2,-5)
• (2,-5)
• (2,5)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve by elimination.

-3x+7y=-16

-9x+5y=16

• (-4, -4)

• (4, 4/7)

• (4/9, 4)

• (-4, 3/2)

If 3x-2=5, then 9x-6=?

• 15

• 10

• 8

• -6

Tags

CCSS.7.EE.B.4A

If 4x=6, then 2x=?

• 2

• 3

• -2

• 6

Tags

CCSS.6.EE.B.7

The equation equivalent to 10x+12=14 is

• 10x+15=15

• 5x+6=7

• 10x+10=16

• 5x+3=7

Tags

CCSS.8.EE.C.7A