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 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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