Question

If y=2
Evaluate the following expression
4(2y-3)

Answer 1

4

Explanation:

Substitute y for 2

4((2×2)-3)

Simplify

4(4-3)

Simplify further

4×1

4×1=4

Answer 2

4

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

4(2y - 3)

y = 2

Step 2: Evaluate

1. Substitute in y: 4(2(2) - 3)
2. Multiply: 4(4 - 3)
3. Subtract: 4(1)
4. Multiply: 4