3/z+8=21

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Solution for 3/z+8=21 equation: 



3/z+8=21

We move all terms to the left:

3/z+8-(21)=0



Domain of the equation: z!=0

z∈R



We add all the numbers together, and all the variables

3/z-13=0

We multiply all the terms by the denominator


-13*z+3=0

We add all the numbers together, and all the variables

-13z+3=0

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

-13z=-3

z=-3/-13

z=3/13

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