3z-31=4z-84

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Solution for 3z-31=4z-84 equation: 



3z-31=4z-84

We move all terms to the left:

3z-31-(4z-84)=0

We get rid of parentheses

3z-4z+84-31=0

We add all the numbers together, and all the variables

-1z+53=0

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

-z=-53

z=-53/-1

z=+53

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