-20=u/7

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Solution for -20=u/7 equation: 



-20=u/7

We move all terms to the left:

-20-(u/7)=0

We add all the numbers together, and all the variables

-(+u/7)-20=0

We get rid of parentheses

-u/7-20=0

We multiply all the terms by the denominator


-u-20*7=0

We add all the numbers together, and all the variables

-1u-140=0

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

-u=140

u=140/-1

u=-140

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