Respuesta :

Space

Answer:

k = -50

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

Identify

0.8k - 20 = -60

Step 2: Solve for k

  1. [Addition Property of Equality] Add 20 on both sides:                                  0.8k = -40
  2. [Division Property of Equality] Divide 0.8 on both sides:                              k = -50

Answer:

k = - 50

Step-by-step explanation:

0.8 k - 20 = - 60

Add 20 to each side

0.8 k - 20 + 20 = - 60 + 20

0.8 k = - 40

divide each side by 0.8

0.8 k / 0.8 = -40 / 0.8

k = - 50

ACCESS MORE
EDU ACCESS