12=3x-x

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Solution for 12=3x-x equation:


12=3x-x

We simplify the equation to the form, which is simple to understand 
12=3x-x

We move all terms containing x to the left and all other terms to the right. 
-3x+1x=-12

We simplify left and right side of the equation. 
-2x=-12

We divide both sides of the equation by -2 to get x. 
x=6

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