7z+2=9=3z

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Solution for 7z+2=9=3z equation: 



7z+2=9=3z

We move all terms to the left:

7z+2-(9)=0

We add all the numbers together, and all the variables

7z-7=0

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

7z=7

z=7/7

z=1

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