-7=-9+2/z

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Solution for -7=-9+2/z equation: 



-7=-9+2/z

We move all terms to the left:

-7-(-9+2/z)=0



Domain of the equation: z)!=0

z!=0/1

z!=0

z∈R



We add all the numbers together, and all the variables

-(2/z-9)-7=0

We get rid of parentheses

-2/z+9-7=0

We multiply all the terms by the denominator


9*z-7*z-2=0

We add all the numbers together, and all the variables

2z-2=0

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

2z=2

z=2/2

z=1

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