21/4x=13.5

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Solution for 21/4x=13.5 equation: 



21/4x=13.5

We move all terms to the left:

21/4x-(13.5)=0



Domain of the equation: 4x!=0

x!=0/4

x!=0

x∈R



We add all the numbers together, and all the variables

21/4x-13.5=0

We multiply all the terms by the denominator


-(13.5)*4x+21=0

We multiply parentheses

-54x+21=0

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

-54x=-21

x=-21/-54

x=7/18

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