-42=-7/8u

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Solution for -42=-7/8u equation: 



-42=-7/8u

We move all terms to the left:

-42-(-7/8u)=0



Domain of the equation: 8u)!=0

u!=0/1

u!=0

u∈R



We get rid of parentheses

7/8u-42=0

We multiply all the terms by the denominator


-42*8u+7=0

Wy multiply elements

-336u+7=0

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

-336u=-7

u=-7/-336

u=1/48

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