Solving Algebraic Equations Using Substitution

Solve the system:

y=5x−5

y= −4x+22

• (1, 2)

• (3, 10)

• (-1, 2)

• (-3, 10)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Find the answer using substitution: Please list your answer as a coordinate (x,y)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve the system (Mild)

y = x - 5

y = 4x + 10

Enter your answer with no spaces as a coordinate.

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Write you answer as a coordinate (x,y) with no spaces.

5x + y = -9

7x + 2y = -9

Spicy

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

List the solution as a coordinate (x,y):

4x + 7y = -1

x + 4y = -7

Spicy

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Put the steps for solving systems of equations with susbstitution in order.

• Plug In

  Plug in solved variable into one original equation

• Write solution as a coordinate

• Isolate

  one variable in one equation

• Check Work

  Check your solution in both equations

• Substitution

  Substitution the isolated equation into the other

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What is the solution to the systems of equations?

Type your answer as a coordiante.

Tags

CCSS.8.EE.C.8B

Please list your answer as a coordinate (x,y)

y = 3x - 6

-6x + y = -9

Medium

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve the system of equations by SUBSTITUTION.

• (4, 0)

• (0, 4)

• No Solution

• Infinite Solutions

Tags

CCSS.8.EE.C.8B

When solving by substitution you can isolate either x or y, it doesn't matter which one.

• True

• False

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6