3(9u-9)=7(5u-8)+21

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Solution for 3(9u-9)=7(5u-8)+21 equation:


3(9u-9)=7(5u-8)+21

We simplify the equation to the form, which is simple to understand 
3(9u-9)=7(5u-8)+21

Reorder the terms in parentheses
+(+27u-27)=7*(5u-8)+21

Remove unnecessary parentheses
+27u-27=+7+*(+5u-8+)+21

Reorder the terms in parentheses
+27u-27=+(+35u-56)+21

Remove unnecessary parentheses
+27u-27=+35u-56+21

We move all terms containing u to the left and all other terms to the right. 
+27u-35u=-56+21+27

We simplify left and right side of the equation. 
-8u=-8

We divide both sides of the equation by -8 to get u. 
u=1

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