21/2=20x

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Solution for 21/2=20x equation: 



21/2=20x

We move all terms to the left:

21/2-(20x)=0

We multiply all the terms by the denominator


-20x*2+21=0

Wy multiply elements

-40x+21=0

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

-40x=-21

x=-21/-40

x=21/40

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