Answer:
x = 45
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
Equality Properties
Geometry
- All angles in a triangle add up to 180°
Explanation:
Step 1: Set up Equation
x + (x + 65) + 25 = 180
Step 2: Solve for x
- Combine like terms: 2x + 90 = 180
- Isolate x term: 2x = 90
- Isolate x: x = 45