z+41=2z+21

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Solution for z+41=2z+21 equation: 



z+41=2z+21

We move all terms to the left:

z+41-(2z+21)=0

We get rid of parentheses

z-2z-21+41=0

We add all the numbers together, and all the variables

-1z+20=0

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

-z=-20

z=-20/-1

z=+20

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