-19.78+13.7z=18.21+17.19+19.9z

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Solution for -19.78+13.7z=18.21+17.19+19.9z equation: 



-19.78+13.7z=18.21+17.19+19.9z

We move all terms to the left:

-19.78+13.7z-(18.21+17.19+19.9z)=0

We add all the numbers together, and all the variables

13.7z-(19.9z+35.4)-19.78=0

We get rid of parentheses

13.7z-19.9z-35.4-19.78=0

We add all the numbers together, and all the variables

-6.2z-55.18=0

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

-6.2z=55.18

z=55.18/-6.2

z=-8+3.5316455696203/3.9240506329114

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