9=4x+12x-7

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Solution for 9=4x+12x-7 equation:


9=4x+12x-7

We simplify the equation to the form, which is simple to understand 
9=4x+12x-7

We move all terms containing x to the left and all other terms to the right. 
-4x-12x=-7-9

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

We divide both sides of the equation by -16 to get x. 
x=1

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