z=-4-2a

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Solution for z=-4-2a equation: 



=-4-2Z

We move all terms to the left:

-(-4-2Z)=0

We add all the numbers together, and all the variables

-(-2Z-4)=0

We get rid of parentheses

2Z+4=0

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

2Z=-4

Z=-4/2

Z=-2

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