Respuesta :

Space

Answer:

r = 5/12

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

  • Multiplication Property of Equality
  • Division Property of Equality
  • Addition Property of Equality
  • Subtraction Property of Equality

Step-by-step explanation:

Step 1: Define

-1/3 = r - 3/4

Step 2: Solve for r

  1. [Addition Property of Equality] Add 3/4 on both sides:                                  5/12 = r
  2. Rewrite:                                                                                                             r = 5/12
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