Solving by Substitution

Solve the System of Equations by Substitution: 4x + 6y = 16 and x = -2

• (-2, 1)

• (-2, 4)

• (-2, 2)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What is the solution to the system?

• (0, 3)
• (1, -1)
• (-3, 1)
• (1, 3)

Tags

CCSS.8.EE.C.8A

4x - 6y = 20  y = -6x

• x=0.5, y= -3
• x= -0.5, y=-3
• x=0.35, y=-2
• x=5, y=-2

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

-5x -8y = -29  y= 3x

• x= -1, y=3
• x=1, y= -3
• x=1, y=3
• x=2, y=3

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What is the solution to this system?

Use Substitution to find the solution.

y = 4x + 3

2x - 3y = 21

• (3,-9)

• (-3,-9)

• (-3,9)

• (0,1)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

y = 3x
2x + y = 20

• (4, 8)
• (3, 9)
• (2, 6)
• (4, 12)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6