3(x-3)=x+21

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


3(x-3)=x+21

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

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

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

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

We simplify left and right side of the equation. 
+2x=+30

We divide both sides of the equation by 2 to get x. 
x=15

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