-1/21x=4

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Solution for -1/21x=4 equation: 



-1/21x=4

We move all terms to the left:

-1/21x-(4)=0



Domain of the equation: 21x!=0

x!=0/21

x!=0

x∈R



We multiply all the terms by the denominator


-4*21x-1=0

Wy multiply elements

-84x-1=0

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

-84x=1

x=1/-84

x=-1/84

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