40=21/2x

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Solution for 40=21/2x equation: 



40=21/2x

We move all terms to the left:

40-(21/2x)=0



Domain of the equation: 2x)!=0

x!=0/1

x!=0

x∈R



We add all the numbers together, and all the variables

-(+21/2x)+40=0

We get rid of parentheses

-21/2x+40=0

We multiply all the terms by the denominator


40*2x-21=0

Wy multiply elements

80x-21=0

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

80x=21

x=21/80

x=21/80

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