# Algebra I/Solving Equations/Solving Equations with Addition and Subtraction

Back to Table of Contents Algebra I

(Note to contributors: Please use the ^ symbol to designate exponents when you enter them in the wikibook. I will format them on the student-user interface.--HSTutorials 00:42, 17 July 2006 (UTC)

## Vocabulary

## Lesson

## Example problems

**ex1.** (3 + x) -4 = 4
add 4 to each side to get rid of the -4

(3 + x) -4+4= 4+4(3 + x) = 8

because there is only one operation to be done on the left of the equation you can get rid of ()

3 + x = 8

Subtract 3 from each side of the equation

3 + x-3= 8-3x = 5

## Practice games

## Practice problems

(Note: put answer in parentheses after each problem you write)

**1.** x + 1 = 4 (3) **2.** x - 1 = 4 (5)