Solving Equations by Substitution and Elimination

Solve for x and y
y = 2x + 1
y = 4x - 1

• (1,3)

• (-1,-3)

• (-1,3)

• (3,1)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve the system of equations.

• (10, 3)

• (6, 3)

• (15, 3)

• No solution

• Infinite Solution

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve the system of equations.

• (-6, 30)

• (-2, 10)

• (44, 39)

• No solution

• Infinite solutions

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

How many solutions?

• One Solution

• No solution

• Infinitely Many Solutions

Tags

CCSS.8.EE.C.8B

y = -5x + 16 3x + 5y = -8

• (-1, -1)

• (1, 4)

• (-1, -2)

• (-1, 2)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

-6x + 4y = 12

y = 6

• (6, 6)

• (2, 4)

• (2, 6)

• (2, -6)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

y = 5x + 7

8x - 8y = -24

• (4, -4)

• (-4, -4)

• (4, 4)

• (4, 0)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

4x + 2y = 12

y = 3x - 14

• (4, -4)

• (4, 4)

• (-2, -2)

• (4, -2)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

7x - 5y = -5

y = -4x + 1

• (0, -4)

• (0, 3)

• (1, 0)

• (0, 1)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

y = 5x + 1

-10x + 2y = 2

• Infinite solutions

• (0, 0)

• (2, 2)

• (2, 1)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6