7-12=z/9

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Solution for 7-12=z/9 equation: 



7-12=z/9

We move all terms to the left:

7-12-(z/9)=0

We add all the numbers together, and all the variables

-(+z/9)+7-12=0

We add all the numbers together, and all the variables

-(+z/9)-5=0

We get rid of parentheses

-z/9-5=0

We multiply all the terms by the denominator


-z-5*9=0

We add all the numbers together, and all the variables

-1z-45=0

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

-z=45

z=45/-1

z=-45

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