Z+2z-7=20

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Solution for Z+2z-7=20 equation: 



+2Z-7=20

We move all terms to the left:

+2Z-7-(20)=0

We add all the numbers together, and all the variables

2Z-27=0

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

2Z=27

Z=27/2

Z=13+1/2

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