7z+9=3z-11

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Solution for 7z+9=3z-11 equation: 



7z+9=3z-11

We move all terms to the left:

7z+9-(3z-11)=0

We get rid of parentheses

7z-3z+11+9=0

We add all the numbers together, and all the variables

4z+20=0

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

4z=-20

z=-20/4

z=-5

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