4z+9z=72

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Solution for 4z+9z=72 equation: 



4z+9z=72

We move all terms to the left:

4z+9z-(72)=0

We add all the numbers together, and all the variables

13z-72=0

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

13z=72

z=72/13

z=5+7/13

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