Question

Find y:

A) 15
B) 13
C) 16
D) 17

Answer 1

y = 17

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

Geometry

• All angles in a triangle add up to 180°

Explanation:

Step 1: Set up Equation

4y + (3y - 10) + (4y + 3) = 180

Step 2: Solve for y

1. Combine like terms: 11y - 7 = 180
2. Isolate y term: 11y = 187
3. Isolate y: y = 17