Respuesta :

Space

Answer:

x = 5

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

  • Definition of a Line: A line is 180°

Step-by-step explanation:

Step 1: Set up Equation

The 2 equations must add up to 180°.

12x + 19 + 22x - 9 = 180

Step 2: Solve for x

  1. Combine like terms:                    34x + 10 = 180
  2. Isolate x term:                              34x = 170
  3. Isolate x:                                       x = 5

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