8+4z=-12

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Solution for 8+4z=-12 equation: 



8+4z=-12

We move all terms to the left:

8+4z-(-12)=0

We add all the numbers together, and all the variables

4z+20=0

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

4z=-20

z=-20/4

z=-5

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