7z-7=56

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Solution for 7z-7=56 equation: 



7z-7=56

We move all terms to the left:

7z-7-(56)=0

We add all the numbers together, and all the variables

7z-63=0

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

7z=63

z=63/7

z=9

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