7x-x=12

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Solution for 7x-x=12 equation: 


Simplifying
7x + -1x = 12

Combine like terms: 7x + -1x = 6x
6x = 12

Solving
6x = 12

Solving for variable 'x'.

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

Divide each side by '6'.
x = 2

Simplifying
x = 2

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