1. Tools for Algebra Vocabulary
OCS Algebra I
Mrs. Bonifay

2. Rules that tell you which operations to do first
Order of Operations
Rules that tell you which operations to do first

3. Variable A letter that represents a number
EXAMPLE: In 3 + a = 15, “a” is the variable.

4. TERMS Parts of an expression separated by an operation sign
EXAMPLE: In 3a + 7, “3a” and “7” are terms

5. CONSTANTS Numbers, or quantities, that do not change
EXAMPLE: In 4 + b, “4” is a constant

6. COEFFICIENT A number that multiplies a variable
EXAMPLE: In 3a, “3” is the coefficient

7. LIKE TERMS Terms that have the same variables with the same exponents
EXAMPLE: In 3a a, “3a” and “2a” are like terms

8. Replace a variable with a number expression 3a + 6 = y a = 3
SUBSTITUTE
Replace a variable with a number expression
3a + 6 = y a = 3

9. EQUATION A statement that two expressions are equal
EXAMPLE: 3a + b = 12 is an equation

10. a group of terms (the terms are separated by operation signs)
Expression
a group of terms (the terms are separated by operation signs)
3a + 5b + 7