5u+15=7(u+5)

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Solution for 5u+15=7(u+5) equation: 



5u+15=7(u+5)

We move all terms to the left:

5u+15-(7(u+5))=0



We calculate terms in parentheses: -(7(u+5)), so:

7(u+5)

We multiply parentheses

7u+35

Back to the equation:

-(7u+35)



We get rid of parentheses

5u-7u-35+15=0

We add all the numbers together, and all the variables

-2u-20=0

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

-2u=20

u=20/-2

u=-10

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