109-x=12x-138

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Solution for 109-x=12x-138 equation:


Simplifying
109 + -1x = 12x + -138

Reorder the terms:
109 + -1x = -138 + 12x

Solving
109 + -1x = -138 + 12x

Solving for variable 'x'.

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

Add '-12x' to each side of the equation.
109 + -1x + -12x = -138 + 12x + -12x

Combine like terms: -1x + -12x = -13x
109 + -13x = -138 + 12x + -12x

Combine like terms: 12x + -12x = 0
109 + -13x = -138 + 0
109 + -13x = -138

Add '-109' to each side of the equation.
109 + -109 + -13x = -138 + -109

Combine like terms: 109 + -109 = 0
0 + -13x = -138 + -109
-13x = -138 + -109

Combine like terms: -138 + -109 = -247
-13x = -247

Divide each side by '-13'.
x = 19

Simplifying
x = 19

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