Algebra vocabulary

1. terms Terms with the same variables raised to the same powers.
3. Find the value of a variable that makes an equation true.
5. The number in front of a variable that multiplies it.
9. An expression with exactly three terms.
11. Make an expression easier by combining like terms or reducing it.
12. The opposite operation, like subtraction for addition.
13. An expression with exactly two terms.
14. A number that doesn't change, no matter what.
15. A single number, variable, or numbers and variables multiplied together.

2. Find the value of an expression by substituting numbers in.
4. A letter or symbol that stands for a number we don't know yet.
6. A mathematical phrase that combines numbers, variables, and operations, but no equals sign.
7. A mathematical statement that shows two expressions are equal.
8. An expression with just one term.
10. Replace a variable with a number or another expression.