-2q=-84

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Solution for -2q=-84 equation: 



-2q=-84

We move all terms to the left:

-2q-(-84)=0

We add all the numbers together, and all the variables

-2q+84=0

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

-2q=-84

q=-84/-2

q=+42

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