Z12+5k=15-4k

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Solution for Z12+5k=15-4k equation: 



12+5Z=15-4Z

We move all terms to the left:

12+5Z-(15-4Z)=0

We add all the numbers together, and all the variables

5Z-(-4Z+15)+12=0

We get rid of parentheses

5Z+4Z-15+12=0

We add all the numbers together, and all the variables

9Z-3=0

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

9Z=3

Z=3/9

Z=1/3

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