7u+2(u+5)=28

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Solution for 7u+2(u+5)=28 equation: 



7u+2(u+5)=28

We move all terms to the left:

7u+2(u+5)-(28)=0

We multiply parentheses

7u+2u+10-28=0

We add all the numbers together, and all the variables

9u-18=0

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

9u=18

u=18/9

u=2

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