3(u+6)=7u+42

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Solution for 3(u+6)=7u+42 equation: 



3(u+6)=7u+42

We move all terms to the left:

3(u+6)-(7u+42)=0

We multiply parentheses

3u-(7u+42)+18=0

We get rid of parentheses

3u-7u-42+18=0

We add all the numbers together, and all the variables

-4u-24=0

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

-4u=24

u=24/-4

u=-6

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