z-10=10-9z

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Solution for z-10=10-9z equation: 



z-10=10-9z

We move all terms to the left:

z-10-(10-9z)=0

We add all the numbers together, and all the variables

z-(-9z+10)-10=0

We get rid of parentheses

z+9z-10-10=0

We add all the numbers together, and all the variables

10z-20=0

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

10z=20

z=20/10

z=2

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