Respuesta :

Space

Answer:

x = 6

General Formulas and Concepts:

Pre-Algebra

  • 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. Subtract 132 on both sides:        8x = 48
  3. Divide 8 on both sides:               x = 6

And we have our final answer!

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