-5=7-8u

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Solution for -5=7-8u equation: 



-5=7-8u

We move all terms to the left:

-5-(7-8u)=0

We add all the numbers together, and all the variables

-(-8u+7)-5=0

We get rid of parentheses

8u-7-5=0

We add all the numbers together, and all the variables

8u-12=0

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

8u=12

u=12/8

u=1+1/2

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