19z+z+4z+3z-7z=20

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Solution for 19z+z+4z+3z-7z=20 equation: 



19z+z+4z+3z-7z=20

We move all terms to the left:

19z+z+4z+3z-7z-(20)=0

We add all the numbers together, and all the variables

20z-20=0

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

20z=20

z=20/20

z=1

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