Respuesta :

Space

Answer:

1st Option

General Formulas and Concepts:

Pre-Alg

  • Order of Operations: BPEMDAS
  • Equality Properties

Step-by-step explanation:

Step 1: Define equation

ab + c = d

Step 2: Solve for b

  1. Subtract c on both sides:          ab = d - c
  2. Divide both sides by a:              b = (d - c)/a

Answer:

B = (d-c)/a

Step-by-step explanation: