20z+9=2+1

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Solution for 20z+9=2+1 equation: 



20z+9=2+1

We move all terms to the left:

20z+9-(2+1)=0

We add all the numbers together, and all the variables

20z+9-3=0

We add all the numbers together, and all the variables

20z+6=0

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

20z=-6

z=-6/20

z=-3/10

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