3u+5=7(u-5)

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



3u+5=7(u-5)

We move all terms to the left:

3u+5-(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

3u-7u+35+5=0

We add all the numbers together, and all the variables

-4u+40=0

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

-4u=-40

u=-40/-4

u=+10

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