3(3u-8)=21

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Solution for 3(3u-8)=21 equation:


3(3u-8)=21

We simplify the equation to the form, which is simple to understand 
3(3u-8)=21

Reorder the terms in parentheses
+(+9u-24)=21

Remove unnecessary parentheses
+9u-24=+21

We move all terms containing u to the left and all other terms to the right. 
+9u=+21+24

We simplify left and right side of the equation. 
+9u=+45

We divide both sides of the equation by 9 to get u. 
u=5

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