4=4z+-8

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Solution for 4=4z+-8 equation: 



4=4z+-8

We move all terms to the left:

4-(4z+-8)=0

We add all the numbers together, and all the variables

-(4z-8)+4=0

We get rid of parentheses

-4z+8+4=0

We add all the numbers together, and all the variables

-4z+12=0

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

-4z=-12

z=-12/-4

z=+3

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