-5/7u=-20

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Solution for -5/7u=-20 equation: 



-5/7u=-20

We move all terms to the left:

-5/7u-(-20)=0



Domain of the equation: 7u!=0

u!=0/7

u!=0

u∈R



We add all the numbers together, and all the variables

-5/7u+20=0

We multiply all the terms by the denominator


20*7u-5=0

Wy multiply elements

140u-5=0

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

140u=5

u=5/140

u=1/28

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