12/100*x=4200

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Solution for 12/100*x=4200 equation: 



12/100x=4200

We move all terms to the left:

12/100x-(4200)=0



Domain of the equation: 100x!=0

x!=0/100

x!=0

x∈R



We multiply all the terms by the denominator


-4200*100x+12=0

Wy multiply elements

-420000x+12=0

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

-420000x=-12

x=-12/-420000

x=1/35000

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