42=8u-7

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Solution for 42=8u-7 equation: 



42=8u-7

We move all terms to the left:

42-(8u-7)=0

We get rid of parentheses

-8u+7+42=0

We add all the numbers together, and all the variables

-8u+49=0

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

-8u=-49

u=-49/-8

u=6+1/8

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