12z+2z+4z-9z-5z=4

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Solution for 12z+2z+4z-9z-5z=4 equation:



12z+2z+4z-9z-5z=4
We move all terms to the left:
12z+2z+4z-9z-5z-(4)=0
We add all the numbers together, and all the variables
4z-4=0
We move all terms containing z to the left, all other terms to the right
4z=4
z=4/4
z=1

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