3z-4z=-31

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Solution for 3z-4z=-31 equation: 



3z-4z=-31

We move all terms to the left:

3z-4z-(-31)=0

We add all the numbers together, and all the variables

-1z+31=0

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

-z=-31

z=-31/-1

z=+31

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