Solving EquationsSolving Equations

Medina 1

Multi-Step Equations

Steps to solveSteps to solve

Medina 2

3. Use inverse of addition or subtraction

You may not have to do all the steps to solve the equation“You know you are done solving

when there is a positive 1 in front of the variable.”

4. Use inverse of multiplication or division

1. Use distributive property

2. Combine like terms

get the letter by itself variabl

e

Solving Equations with Algorithm Solving Equations with Algorithm

Medina 3

To Solve:

8 5 16 8x x

16

x

16

8

Original problem

Subtract 16 from both sides

Check answer

Combine like terms

3x

3x

24-3 3

Divide both sides

by 3

1

16 8

Solving Equations with Algorithm Solving Equations with Algorithm

Medina 4

Check:

8 8

8x -

8 5 16 8x x

8-

3 16 8x 3 16 8

24 16 8

Solving Equations with Algorithm Solving Equations with Algorithm

Medina 5

To Solve:

9 5 6 14x x

30

x

30

4

Original problem

Add 30 to both sides

Check answer

Combine like terms

4x

4x

164 4

Divide both sides

by 41

9 14x Distributive Property 5x 30 30 14

Solving Equations with Algorithm Solving Equations with Algorithm

Medina 6

Check:

14 14

4x

9 5 6 14x x

4 4 30 14x

4 30 14

16 30 14

9 5 30 14x x