3(u+7)-7u=5

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



3(u+7)-7u=5

We move all terms to the left:

3(u+7)-7u-(5)=0

We add all the numbers together, and all the variables

-7u+3(u+7)-5=0

We multiply parentheses

-7u+3u+21-5=0

We add all the numbers together, and all the variables

-4u+16=0

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

-4u=-16

u=-16/-4

u=+4

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