7/5u=20

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Solution for 7/5u=20 equation: 



7/5u=20

We move all terms to the left:

7/5u-(20)=0



Domain of the equation: 5u!=0

u!=0/5

u!=0

u∈R



We multiply all the terms by the denominator


-20*5u+7=0

Wy multiply elements

-100u+7=0

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

-100u=-7

u=-7/-100

u=7/100

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