Question

what is the value of x in 0.8x = 7.2

Answer 1

Answer:

x = 9

General Formulas and Concepts:

Pre-Algebra

• Order of Operations: BPEMDAS
• Equality Properties

Step-by-step explanation:

Step 1: Define equation

0.8x = 7.2

Step 2: Solve for x

1. Divide both sides by 0.8:                    x = 9

Step 3: Check

Plug in x to verify it's a solution.

1. Substitute:                    0.8(9) = 7.2
2. Multiply:                        7.2 = 7.2

7.2 does indeed equal 7.2. ∴ x = 9 is a solution.

And we have our final answer!

Answer 2

Answer:

9

Step-by-step explanation:

7.2 ÷ 0.8 = 9

x = 9