-3(x-7)=x+9

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Solution for -3(x-7)=x+9 equation:


-3(x-7)=x+9

We simplify the equation to the form, which is simple to understand 
-3(x-7)=x+9

Reorder the terms in parentheses
+(-3x+21)=x+9

Remove unnecessary parentheses
-3x+21=+x+9

We move all terms containing x to the left and all other terms to the right. 
-3x-1x=+9-21

We simplify left and right side of the equation. 
-4x=-12

We divide both sides of the equation by -4 to get x. 
x=3

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