5(u+6)+4u=21

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Solution for 5(u+6)+4u=21 equation: 



5(u+6)+4u=21

We move all terms to the left:

5(u+6)+4u-(21)=0

We add all the numbers together, and all the variables

4u+5(u+6)-21=0

We multiply parentheses

4u+5u+30-21=0

We add all the numbers together, and all the variables

9u+9=0

We move all terms containing u to the left, all other terms to the right

9u=-9

u=-9/9

u=-1

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