21/2t=20

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Solution for 21/2t=20 equation: 



21/2t=20

We move all terms to the left:

21/2t-(20)=0



Domain of the equation: 2t!=0

t!=0/2

t!=0

t∈R



We multiply all the terms by the denominator


-20*2t+21=0

Wy multiply elements

-40t+21=0

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

-40t=-21

t=-21/-40

t=21/40

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