3/5*x=21

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Solution for 3/5*x=21 equation: 



3/5x=21

We move all terms to the left:

3/5x-(21)=0



Domain of the equation: 5x!=0

x!=0/5

x!=0

x∈R



We multiply all the terms by the denominator


-21*5x+3=0

Wy multiply elements

-105x+3=0

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

-105x=-3

x=-3/-105

x=1/35

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