3z-20=z+90

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Solution for 3z-20=z+90 equation: 



3z-20=z+90

We move all terms to the left:

3z-20-(z+90)=0

We get rid of parentheses

3z-z-90-20=0

We add all the numbers together, and all the variables

2z-110=0

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

2z=110

z=110/2

z=55

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