Question

2(2u + 7) = 42

solve for u
simplify your answer as much as possible

Answer 1

2u+7=21

2u=21-7

2u=14

U=7

Answer 2

u = 7

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

Equality Properties

Explanation:

Step 1: Define

2(2u + 7) = 42

Step 2: Solve for u

1. Divide 2 on both sides: 2u + 7 = 21
2. Isolate u term: 2u = 14
3. Isolate u: u = 7