2(5x+4)-2=5x+21

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Solution for 2(5x+4)-2=5x+21 equation:


Simplifying
2(5x + 4) + -2 = 5x + 21

Reorder the terms:
2(4 + 5x) + -2 = 5x + 21
(4 * 2 + 5x * 2) + -2 = 5x + 21
(8 + 10x) + -2 = 5x + 21

Reorder the terms:
8 + -2 + 10x = 5x + 21

Combine like terms: 8 + -2 = 6
6 + 10x = 5x + 21

Reorder the terms:
6 + 10x = 21 + 5x

Solving
6 + 10x = 21 + 5x

Solving for variable 'x'.

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

Add '-5x' to each side of the equation.
6 + 10x + -5x = 21 + 5x + -5x

Combine like terms: 10x + -5x = 5x
6 + 5x = 21 + 5x + -5x

Combine like terms: 5x + -5x = 0
6 + 5x = 21 + 0
6 + 5x = 21

Add '-6' to each side of the equation.
6 + -6 + 5x = 21 + -6

Combine like terms: 6 + -6 = 0
0 + 5x = 21 + -6
5x = 21 + -6

Combine like terms: 21 + -6 = 15
5x = 15

Divide each side by '5'.
x = 3

Simplifying
x = 3

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