7x-117=2x-12

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Solution for 7x-117=2x-12 equation:


Simplifying
7x + -117 = 2x + -12

Reorder the terms:
-117 + 7x = 2x + -12

Reorder the terms:
-117 + 7x = -12 + 2x

Solving
-117 + 7x = -12 + 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.
-117 + 7x + -2x = -12 + 2x + -2x

Combine like terms: 7x + -2x = 5x
-117 + 5x = -12 + 2x + -2x

Combine like terms: 2x + -2x = 0
-117 + 5x = -12 + 0
-117 + 5x = -12

Add '117' to each side of the equation.
-117 + 117 + 5x = -12 + 117

Combine like terms: -117 + 117 = 0
0 + 5x = -12 + 117
5x = -12 + 117

Combine like terms: -12 + 117 = 105
5x = 105

Divide each side by '5'.
x = 21

Simplifying
x = 21

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