Systems...

Solve the system of equations using substitution:
y = 2x + 5
2x + 2y = 4

• (1, 7)
• (7, 1)
• (2, 9)
• (-1, 3)

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 
2x+9y= -7 
6x-3y= 9 

• (-1, -1) 
• (2,-1)
• (1,1)
• (1,-1)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Which is the solution to this system of equations?

-3x + 2y = 48

3x + y = 42

• (4, 30)

• (4, 15)

• (30, 4)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Chris's bedroom has a perimeter of 44 ft. The length of his bedroom is 2 more than the width. What system of equations could be used to find the dimensions of his room?

• 44 = 2L + 2W

  L = 2W

• 2L = W

  44 = 2L + 2W

• L = W + 2

  44 = L + W

Tags

CCSS.8.EE.C.8C