Answer:
x = 6
General Formulas and Concepts:
Pre-Algebra
- Order of Operations: BPEMDAS
- Equality Properties
Geometry
- All angles in a triangle add up to 180°
Step-by-step explanation:
Step 1: Set up equation
(8x + 2) + 70 + 60 = 180
Step 2: Solve for x
- Combine like terms: 8x + 132 = 180
- Isolate x term: 8x = 48
- Isolate x: x = 6
