-4z+8=20

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Solution for -4z+8=20 equation: 



-4z+8=20

We move all terms to the left:

-4z+8-(20)=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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