13-3x+2+6x-2x-1=21

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Solution for 13-3x+2+6x-2x-1=21 equation:


13-3x+2+6x-2x-1=21

We simplify the equation to the form, which is simple to understand 
13-3x+2+6x-2x-1=21

We move all terms containing x to the left and all other terms to the right. 
-3x+6x-2x=+21-13-2+1

We simplify left and right side of the equation. 
+1x=+7

We divide both sides of the equation by 1 to get x. 
x=7

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