7z-9=3z-25

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Solution for 7z-9=3z-25 equation: 



7z-9=3z-25

We move all terms to the left:

7z-9-(3z-25)=0

We get rid of parentheses

7z-3z+25-9=0

We add all the numbers together, and all the variables

4z+16=0

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

4z=-16

z=-16/4

z=-4

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