(x-7)*3=21

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Solution for (x-7)*3=21 equation:


(x-7)*3=21

We simplify the equation to the form, which is simple to understand 
(x-7)*3=21

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

Remove unnecessary parentheses
+3x-21=21

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

We simplify left and right side of the equation. 
+3x=+42

We divide both sides of the equation by 3 to get x. 
x=14

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