Question

Solve -2 x + 6 = -20.

Answer 1

x = 13

Explanation:

Subtract 6 from both sides: -2x = -26

divide both side by -2 to isolate x: x = 13

Answer 2

x = 13

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

Explanation:

Step 1: Define equation

-2x + 6 = -20

Step 2: Solve for x

1. Subtract 6 on both sides: -2x = -26
2. Divide -2 on both sides: x = 13

Step 3: Check

Plug in x into the original equation to verify it's a solution.

1. Substitute in x: -2(13) + 6 = -20
2. Multiply: -26 + 6 = -20
3. Add: -20 = -20

Here we see that -20 does indeed equal -20.

∴ x = 13 is the solution to the equation.