1. FRONT OF FLIPBOOK!
Solving Equations Equations
To solve an equation containing a variable:
One way to solve an equation is to use:
Equations are like balance beams or teeter-totters. What you do to one side, you MUST do to the other!
Find the value (or values) of the variable that make the equation true
INVERSE OPERATIONS,
Operations that “undo” one another

2. Add the same value on each side
One-Step Equations and Properties of Equality
Addition Property of Equality:
Subtraction Property of Equality:
A mother holds her baby and steps on a scale. The scale
reads 146 pounds. Alone, the mother weighs 131 pounds.
How much does the baby weigh?
Solve and justify each step. 5.
Add the same value on each side
Subtract the same value on each side

3. Divide each side by the same value
Multiply each side by the same value
Multiplication Property of Equality:
You can use reciprocals to solve these. 8.
11.
Solve and justify each step. 9.
Division Property of Equality:
Find the value of x.
Divide each side by the same value