Respuesta :

Space

Answer:

y = -8

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

-4x + 5y = 12

x = -13

Step 2: Solve for y

  1. Substitute in x:                                                                                                  -4(-13) + 5y = 12
  2. Multiply:                                                                                                             52 + 5y = 12
  3. [Subtraction Property of Equality] Isolate y term:                                           5y = -40
  4. [Division Property of Equality] Isolate y:                                                         y = -8
quitta74

Answer:

-8

Step-by-step explanation:

-4x + 5y =12

-4(-13) + 5y =12

52 + 5y =12

5y= -52 + 12

5y/5 = -40/5

y= -8

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