3x+139=12x-14

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Solution for 3x+139=12x-14 equation:


Simplifying
3x + 139 = 12x + -14

Reorder the terms:
139 + 3x = 12x + -14

Reorder the terms:
139 + 3x = -14 + 12x

Solving
139 + 3x = -14 + 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.
139 + 3x + -12x = -14 + 12x + -12x

Combine like terms: 3x + -12x = -9x
139 + -9x = -14 + 12x + -12x

Combine like terms: 12x + -12x = 0
139 + -9x = -14 + 0
139 + -9x = -14

Add '-139' to each side of the equation.
139 + -139 + -9x = -14 + -139

Combine like terms: 139 + -139 = 0
0 + -9x = -14 + -139
-9x = -14 + -139

Combine like terms: -14 + -139 = -153
-9x = -153

Divide each side by '-9'.
x = 17

Simplifying
x = 17

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