q+9=2q

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Solution for q+9=2q equation: 



q+9=2q

We move all terms to the left:

q+9-(2q)=0

We add all the numbers together, and all the variables

-1q+9=0

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

-q=-9

q=-9/-1

q=+9

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