x-3(2x+3)=21

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Solution for x-3(2x+3)=21 equation:


x-3(2x+3)=21

We simplify the equation to the form, which is simple to understand 
x-3(2x+3)=21

Reorder the terms in parentheses
x+(-6x-9)=21

Remove unnecessary parentheses
+x-6x-9=+21

We move all terms containing x to the left and all other terms to the right. 
+1x-6x=+21+9

We simplify left and right side of the equation. 
-5x=+30

We divide both sides of the equation by -5 to get x. 
x=-6

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