| A | B |
|---|
| variable | a letter or symbol standing for an unknown number |
| algebra | the type of math that includes variables |
| coefficient | a number in front of a variable that is multiplying by the variable |
| equation | a number sentence with an equals sign |
| expression | a number sentence with no equals sign or inequality sign |
| inequality | a number sentence with an inequality sign |
| solution | any value or values that makes an equation or inequality true |
| substitute | to put a number in for a variable |
| equality | the property that whatever you do to one side of an equation you must do to the other side |
| inverse | the property that states that two reciprocals multiplied together equal one |
| division | the inverse operation of multiplication |
| multiplication | the inverse operation of division |
| addition | the inverse operation of subtraction |
| subtraction | the inverse operation of addition |
