7/4*x=21

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Solution for 7/4*x=21 equation: 



7/4x=21

We move all terms to the left:

7/4x-(21)=0



Domain of the equation: 4x!=0

x!=0/4

x!=0

x∈R



We multiply all the terms by the denominator


-21*4x+7=0

Wy multiply elements

-84x+7=0

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

-84x=-7

x=-7/-84

x=1/12

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