-13=1/7z

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Solution for -13=1/7z equation: 



-13=1/7z

We move all terms to the left:

-13-(1/7z)=0



Domain of the equation: 7z)!=0

z!=0/1

z!=0

z∈R



We add all the numbers together, and all the variables

-(+1/7z)-13=0

We get rid of parentheses

-1/7z-13=0

We multiply all the terms by the denominator


-13*7z-1=0

Wy multiply elements

-91z-1=0

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

-91z=1

z=1/-91

z=-1/91

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