12=x+7x-4

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Solution for 12=x+7x-4 equation:


12=x+7x-4

We simplify the equation to the form, which is simple to understand 
12=x+7x-4

We move all terms containing x to the left and all other terms to the right. 
-1x-7x=-4-12

We simplify left and right side of the equation. 
-8x=-16

We divide both sides of the equation by -8 to get x. 
x=2

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