Answer:
x = 12
General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
Equality Properties
Step-by-step explanation:
<u>Step 1: Define equation</u>
5(x - 8) = 20
<u>Step 2: Solve for </u><em><u>x</u></em>
- Divide 5 on both sides: x - 8 = 4
- Add 8 on both sides: x = 12
<u>Step 3: Check</u>
<em>Plug in x into the original equation to verify it's a solution.</em>
- Substitute in <em>x</em>: 5(12 - 8) = 20
- Subtract: 5(4) = 20
- Multiply: 20 = 20
Here we see that 20 does indeed equal 20.
∴ x = 12 is a solution to the equation.