-12z=-20-10z

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Solution for -12z=-20-10z equation: 



-12z=-20-10z

We move all terms to the left:

-12z-(-20-10z)=0

We add all the numbers together, and all the variables

-12z-(-10z-20)=0

We get rid of parentheses

-12z+10z+20=0

We add all the numbers together, and all the variables

-2z+20=0

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

-2z=-20

z=-20/-2

z=+10

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