-3/10z=21

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Solution for -3/10z=21 equation: 



-3/10z=21

We move all terms to the left:

-3/10z-(21)=0



Domain of the equation: 10z!=0

z!=0/10

z!=0

z∈R



We multiply all the terms by the denominator


-21*10z-3=0

Wy multiply elements

-210z-3=0

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

-210z=3

z=3/-210

z=-1/70

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