3/8z=-21

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Solution for 3/8z=-21 equation: 



3/8z=-21

We move all terms to the left:

3/8z-(-21)=0



Domain of the equation: 8z!=0

z!=0/8

z!=0

z∈R



We add all the numbers together, and all the variables

3/8z+21=0

We multiply all the terms by the denominator


21*8z+3=0

Wy multiply elements

168z+3=0

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

168z=-3

z=-3/168

z=-1/56

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