| A | B |
|---|
| variable equation | an equation containing a variable |
| solution | a value of the variable that makes an equation true |
| equivalent equations | equations with the same solution |
| inverse operations | operations that "undo" each other |
| subtraction | inverse of addition |
| addition | inverse of subtraction |
| multiplication | inverse of division |
| division | inverse of multiplication |
| solve | find the solution of an equation |
| check | substitute the solution for the variable |
| discount | how much you save when something is on sale |
| sale price | the regular price minus the discount |
