5(2x-12)+21=2x+21

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Solution for 5(2x-12)+21=2x+21 equation:


Simplifying
5(2x + -12) + 21 = 2x + 21

Reorder the terms:
5(-12 + 2x) + 21 = 2x + 21
(-12 * 5 + 2x * 5) + 21 = 2x + 21
(-60 + 10x) + 21 = 2x + 21

Reorder the terms:
-60 + 21 + 10x = 2x + 21

Combine like terms: -60 + 21 = -39
-39 + 10x = 2x + 21

Reorder the terms:
-39 + 10x = 21 + 2x

Solving
-39 + 10x = 21 + 2x

Solving for variable 'x'.

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

Add '-2x' to each side of the equation.
-39 + 10x + -2x = 21 + 2x + -2x

Combine like terms: 10x + -2x = 8x
-39 + 8x = 21 + 2x + -2x

Combine like terms: 2x + -2x = 0
-39 + 8x = 21 + 0
-39 + 8x = 21

Add '39' to each side of the equation.
-39 + 39 + 8x = 21 + 39

Combine like terms: -39 + 39 = 0
0 + 8x = 21 + 39
8x = 21 + 39

Combine like terms: 21 + 39 = 60
8x = 60

Divide each side by '8'.
x = 7.5

Simplifying
x = 7.5

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