5u+15=3(u+1)

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Solution for 5u+15=3(u+1) equation: 



5u+15=3(u+1)

We move all terms to the left:

5u+15-(3(u+1))=0



We calculate terms in parentheses: -(3(u+1)), so:

3(u+1)

We multiply parentheses

3u+3

Back to the equation:

-(3u+3)



We get rid of parentheses

5u-3u-3+15=0

We add all the numbers together, and all the variables

2u+12=0

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

2u=-12

u=-12/2

u=-6

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