3=5(7u+15)

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Solution for 3=5(7u+15) equation: 



3=5(7u+15)

We move all terms to the left:

3-(5(7u+15))=0



We calculate terms in parentheses: -(5(7u+15)), so:

5(7u+15)

We multiply parentheses

35u+75

Back to the equation:

-(35u+75)



We get rid of parentheses

-35u-75+3=0

We add all the numbers together, and all the variables

-35u-72=0

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

-35u=72

u=72/-35

u=-2+2/35

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