2z-7-4=9

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Solution for 2z-7-4=9 equation: 



2z-7-4=9

We move all terms to the left:

2z-7-4-(9)=0

We add all the numbers together, and all the variables

2z-20=0

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

2z=20

z=20/2

z=10

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