15-2z=11,9

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Solution for 15-2z=11,9 equation: 



15-2z=11.9

We move all terms to the left:

15-2z-(11.9)=0

We add all the numbers together, and all the variables

-2z+3.1=0

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

-2z=-3.1

z=-3.1/-2

z=1+1/1.8181818181818

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