-4=2/7z

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Solution for -4=2/7z equation: 



-4=2/7z

We move all terms to the left:

-4-(2/7z)=0



Domain of the equation: 7z)!=0

z!=0/1

z!=0

z∈R



We add all the numbers together, and all the variables

-(+2/7z)-4=0

We get rid of parentheses

-2/7z-4=0

We multiply all the terms by the denominator


-4*7z-2=0

Wy multiply elements

-28z-2=0

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

-28z=2

z=2/-28

z=-1/14

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