-4=z/5-7

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Solution for -4=z/5-7 equation: 



-4=z/5-7

We move all terms to the left:

-4-(z/5-7)=0

We get rid of parentheses

-z/5+7-4=0

We multiply all the terms by the denominator


-z+7*5-4*5=0

We add all the numbers together, and all the variables

-1z+15=0

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

-z=-15

z=-15/-1

z=+15

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