Lesson: Solving Two-Step Equations

Multiple Choice

Do you have your notebook out and ready to take notes? ​

(you will need to take a picture and upload it at the end)

• YES, I have my notebook out, I mean, I want to learn and be successful.

• Uh...No, and I know it means a bad grade, I have accepted my fate.

Solving Two-Step Equations

Objective: Solve two-step equations

Multiple Choice

Which answer would be the solution to: 2x - 4 = 10

• x = 7

• x = 14

• x = 6

• x = 28

• x = 12

​Solution

​2x - 4 = 10

​2 ⋅ x - 4 = 10

​2 ⋅ 🔲 - 4 = 10

​x = 7

​x = 6

​x = 14

​x = 28

​x = 12

2x - 6 = -24

​STEPS

1) Add or Subtract to remove a number

2) Multiply or Divide to remove a number

Manipulate the equation to get the variable by itself

Match

Match the following equation with the first step you would perform to solve.

• 5x - 3 = 21

• 5x + 3 = 1

• 3x + 5 = 6

• 3x - 5 = 9

add 3 to both sides

subtract 3 from both sides

subtract 5 from both sides

add 5 to both sides

• add 3 to both sides

• subtract 3 from both sides

• subtract 5 from both sides

• add 5 to both sides

Math Response

Solve: 3x - 9 = -24

Type answer here

Correct Answer: -5

Deg^°

Rad

EXAMPLE

10 - 3x = -14

​STEPS

1) Add or Subtract

2) Multiply or Divide

​

Math Response

Solve: 10 - 2x = -10

Type answer here

Correct Answer: 10

Deg^°

Rad

EXAMPLE

-5 = 13 - 9x

​STEPS

1) Add or Subtract

2) Multiply or Divide

​

Math Response

Solve: 43 = -23 - 3x

Type answer here

Correct Answer: -22

Deg^°

Rad