42-2q=20

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Solution for 42-2q=20 equation: 



42-2q=20

We move all terms to the left:

42-2q-(20)=0

We add all the numbers together, and all the variables

-2q+22=0

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

-2q=-22

q=-22/-2

q=+11

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