Respuesta :

Space

Answer:

y = 17

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

  • All angles in a triangle add up to 180°

Step-by-step explanation:

Step 1: Set up Equation

4y + (3y - 10) + (4y + 3) = 180

Step 2: Solve for y

  1. Combine like terms:                    11y - 7 = 180
  2. Isolate y term:                              11y = 187
  3. Isolate y:                                       y = 17

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