Solution Substitution

Solve the system using substitution.
y = 6x - 5
6x - 7y = -1

• (1,1)

• (-1, -11)

• No Solution

• Infinitely many solutions

Tags

CCSS.8.EE.C.8B

Solve the system using substitution.
-7y + 5x = -3
x = 5y - 15

• (5,4)

• (4,5)

• No Solution

• Infinitely Many Solutions

Tags

CCSS.8.EE.C.8B

Solve the system using substitution.
y = -8x + 20
-8x - y = -20

• (5,7)

• (4, -9)

• No Solution

• Infinitely Many Solutions

Tags

CCSS.8.EE.C.8B

Solve the system using substitution.
y = -3x + 9
-8x + 5y = -1

• (3,2)

• (2,3)

• No Solution

• Infinitely Many Solutions

Tags

CCSS.8.EE.C.8B

Solve the system using substitution.
16x + 2y = 2
y = -8x - 1

• (2,3)

• (-3,7)

• No Solution

• Infinitely Many Solutions

Tags

CCSS.8.EE.C.8B

Solve the system:
x + y = 19
y = 3x - 1

• (14, 5)

• (11, 8)

• (5, 14)

• (8, 11)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

This system has _____ solutions

• No

• 1

• 2

• Infinitely many

Tags

CCSS.8.EE.C.8B

The first step in solving using the substitution method is __________.

• get x by itself

• get y by itself

• get either variable by itself in one equation

• add the equations together

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What is the solution to the system of equations? 
y = 3x - 8
y = 4 - x

• (3,1)

• (1,3)

• (-3,1)

• (3,-1)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve:
x = -3y - 17
2x + 3y = -7

• (1, -20)

• (3, 0)

• (-5, -2)

• (10 , -9)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6