5z+4z=72

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Solution for 5z+4z=72 equation: 



5z+4z=72

We move all terms to the left:

5z+4z-(72)=0

We add all the numbers together, and all the variables

9z-72=0

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

9z=72

z=72/9

z=8

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