15z+7z+8z=180

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Solution for 15z+7z+8z=180 equation: 



15z+7z+8z=180

We move all terms to the left:

15z+7z+8z-(180)=0

We add all the numbers together, and all the variables

30z-180=0

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

30z=180

z=180/30

z=6

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