3z+7=(-20)

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Solution for 3z+7=(-20) equation: 



3z+7=(-20)

We move all terms to the left:

3z+7-((-20))=0

We add all the numbers together, and all the variables

3z+27=0

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

3z=-27

z=-27/3

z=-9

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