3z-9=5z-20

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Solution for 3z-9=5z-20 equation: 



3z-9=5z-20

We move all terms to the left:

3z-9-(5z-20)=0

We get rid of parentheses

3z-5z+20-9=0

We add all the numbers together, and all the variables

-2z+11=0

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

-2z=-11

z=-11/-2

z=5+1/2

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