Question

How to solve the equation 8b - 12 = 5b

Answer 1

Answer:

b = 4

General Formulas and Concepts:

Pre-Algebra

• Order of Operations: BPEMDAS

Algebra I

• Equality Properties

Step-by-step explanation:

Step 1: Define equation

8b - 12 = 5b

Step 2: Solve for b

1. Subtract 5b on both sides:                    3b - 12 = 0
2. Add 12 on both sides:                            3b = 12
3. Divide 3 on both sides:                          b = 4

Step 3: Check

Plug in b to verify it's a solution.

1. Substitute:                  8(4) - 12 = 5(4)
2. Multiply:                      32 - 12 = 20
3. Subtract:                     20 = 20

And we have our final answer!