Respuesta :

Space

Answer:

m = -4

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

8 - 3(1 - m) = -7

Step 2: Solve for m

  1. [Subtraction Property of Equality] Subtract 8 on both sides:                       -3(1 - m) = -15
  2. [Division Property of Equality] Divide -3 on both sides:                               1 - m = 5
  3. [Subtraction Property of Equality] Subtract 1 on both sides:                         -m = 4
  4. [Division Property of Equality] Divide -1 on both sides:                               m = -4

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