2+2z=20

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Solution for 2+2z=20 equation: 



2+2z=20

We move all terms to the left:

2+2z-(20)=0

We add all the numbers together, and all the variables

2z-18=0

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

2z=18

z=18/2

z=9

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