Question

How to do 2(x-5)-8=20

Answer 1

Solution for 2(x-5)-8=20 equation:

Simplifying

2(x + -5) + -8 = 20

Reorder the terms:

2(-5 + x) + -8 = 20

(-5 * 2 + x * 2) + -8 = 20

(-10 + 2x) + -8 = 20

Reorder the terms:

-10 + -8 + 2x = 20

Combine like terms: -10 + -8 = -18

-18 + 2x = 20

Solving

-18 + 2x = 20

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '18' to each side of the equation.

-18 + 18 + 2x = 20 + 18

Combine like terms: -18 + 18 = 0

0 + 2x = 20 + 18

2x = 20 + 18

Combine like terms: 20 + 18 = 38

2x = 38

Divide each side by '2'.

x = 19

Simplifying

x = 19

Answer 2

x = 19

Explanation:

First, distribute the 2 on the left side.

2(x - 5) - 8 = 20

2x - 10 - 8 = 20

Combine like terms on the left side.

2x - 18 = 20

Add 18 to both sides.

2x = 38

Divide both sides by 2.

x = 19