-4=12-2z

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Solution for -4=12-2z equation: 



-4=12-2z

We move all terms to the left:

-4-(12-2z)=0

We add all the numbers together, and all the variables

-(-2z+12)-4=0

We get rid of parentheses

2z-12-4=0

We add all the numbers together, and all the variables

2z-16=0

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

2z=16

z=16/2

z=8

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