.8-z=2.1

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Solution for .8-z=2.1 equation: 



.8-z=2.1

We move all terms to the left:

.8-z-(2.1)=0

We add all the numbers together, and all the variables

-1z-1.3=0

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

-z=1.3

z=1.3/-1

z=-1+0.3/1

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