| A | B |
|---|
| An equation is like a | balance scale |
| Addition property of equality | you can add the same number to both sides of an equation |
| Subtraction property of equality | you can subtract the same number from both sides of an equation |
| Multiplication property of equality | you can multiply both sides of an equation by the same number |
| Division property of equality | you can divide both sides of an equation by the same non-zero number |
| If there are fractions in an equation | multiply both sides by the common denominator |
| Never divide by | zero |
| To check your answer | plug it back into the equation |
