12+9x=138

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Solution for 12+9x=138 equation: 


Simplifying
12 + 9x = 138

Solving
12 + 9x = 138

Solving for variable 'x'.

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

Add '-12' to each side of the equation.
12 + -12 + 9x = 138 + -12

Combine like terms: 12 + -12 = 0
0 + 9x = 138 + -12
9x = 138 + -12

Combine like terms: 138 + -12 = 126
9x = 126

Divide each side by '9'.
x = 14

Simplifying
x = 14

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