117=x+(x-20)

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Solution for 117=x+(x-20) equation: 


Simplifying
117 = x + (x + -20)

Reorder the terms:
117 = x + (-20 + x)

Remove parenthesis around (-20 + x)
117 = x + -20 + x

Reorder the terms:
117 = -20 + x + x

Combine like terms: x + x = 2x
117 = -20 + 2x

Solving
117 = -20 + 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 + -2x = -20 + 2x + -2x

Combine like terms: 2x + -2x = 0
117 + -2x = -20 + 0
117 + -2x = -20

Add '-117' to each side of the equation.
117 + -117 + -2x = -20 + -117

Combine like terms: 117 + -117 = 0
0 + -2x = -20 + -117
-2x = -20 + -117

Combine like terms: -20 + -117 = -137
-2x = -137

Divide each side by '-2'.
x = 68.5

Simplifying
x = 68.5

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