-7u/8=-21

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Solution for -7u/8=-21 equation: 



-7u/8=-21

We move all terms to the left:

-7u/8-(-21)=0

We add all the numbers together, and all the variables

-7u/8+21=0

We multiply all the terms by the denominator


-7u+21*8=0

We add all the numbers together, and all the variables

-7u+168=0

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

-7u=-168

u=-168/-7

u=+24

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