2z+3z+7z=180

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Solution for 2z+3z+7z=180 equation: 



2z+3z+7z=180

We move all terms to the left:

2z+3z+7z-(180)=0

We add all the numbers together, and all the variables

12z-180=0

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

12z=180

z=180/12

z=15

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