45=5(7+u)

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Solution for 45=5(7+u) equation: 



45=5(7+u)

We move all terms to the left:

45-(5(7+u))=0

We add all the numbers together, and all the variables

-(5(u+7))+45=0



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

5(u+7)

We multiply parentheses

5u+35

Back to the equation:

-(5u+35)



We get rid of parentheses

-5u-35+45=0

We add all the numbers together, and all the variables

-5u+10=0

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

-5u=-10

u=-10/-5

u=+2

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