1/2*u=20

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Solution for 1/2*u=20 equation: 



1/2u=20

We move all terms to the left:

1/2u-(20)=0



Domain of the equation: 2u!=0

u!=0/2

u!=0

u∈R



We multiply all the terms by the denominator


-20*2u+1=0

Wy multiply elements

-40u+1=0

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

-40u=-1

u=-1/-40

u=1/40

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