3z-7=z+5

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Solution for 3z-7=z+5 equation: 



3z-7=z+5

We move all terms to the left:

3z-7-(z+5)=0

We get rid of parentheses

3z-z-5-7=0

We add all the numbers together, and all the variables

2z-12=0

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

2z=12

z=12/2

z=6

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