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

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



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

We move all terms to the left:

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

We multiply parentheses

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

We get rid of parentheses

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

We add all the numbers together, and all the variables

-8u-8=0

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

-8u=8

u=8/-8

u=-1

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