Question

Evaluate the expression when m=9 and n=7.
5m +n

Answer 1

52

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

1. Brackets
2. Parenthesis
3. Exponents
4. Multiplication
5. Division
6. Addition
7. Subtraction

• Left to Right

Explanation:

Step 1: Define

Identify

m = 9

n = 7

5m + n

Step 2: Evaluate

1. Substitute in variables: 5(9) + 7
2. Multiply: 45 + 7
3. Add: 52

Answer 2

52

Explanation:

5m +n

Let m =9 and n=7

5*9 +7

Multiply first

45+7

Add

52