-20=5/2u

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Solution for -20=5/2u equation: 



-20=5/2u

We move all terms to the left:

-20-(5/2u)=0



Domain of the equation: 2u)!=0

u!=0/1

u!=0

u∈R



We add all the numbers together, and all the variables

-(+5/2u)-20=0

We get rid of parentheses

-5/2u-20=0

We multiply all the terms by the denominator


-20*2u-5=0

Wy multiply elements

-40u-5=0

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

-40u=5

u=5/-40

u=-1/8

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