Respuesta :

Space

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

  1. Combine like terms:                    8x + 132 = 180
  2. Isolate x term:                              8x = 48
  3. Isolate x:                                       x = 6