1+0.1*(z^-1)-0.72*(z^-2)=0

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Solution for 1+0.1*(z^-1)-0.72*(z^-2)=0 equation: 



1+0.1(z^-1)-0.72(z^-2)=0

We multiply parentheses

0.1z-0.72z-0.1+1.44+1=0

We add all the numbers together, and all the variables

-0.62z+2.34=0

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

-0.62z=-2.34

z=-2.34/-0.62

z=3+0.48/0.62

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