| A | B |
|---|
| a rule for the relationship between certain quantities | formula |
| to find the value of the variable that makes the equation true | solve an equation |
| equations that have the same solution | equivalent equations |
| If a = b, then a - c = b - c. | subtraction property of equality |
| If a = b, then a + c = b + c. | addition property of equality |
| If a = b, then a*c = b*c. | multiplication property of equality |
| If a = b, then a/c = b/c. | division property of equality |
