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-q+9=-2+4q-9
We move all terms to the left:
-q+9-(-2+4q-9)=0
We add all the numbers together, and all the variables
-q-(4q-11)+9=0
We add all the numbers together, and all the variables
-1q-(4q-11)+9=0
We get rid of parentheses
-1q-4q+11+9=0
We add all the numbers together, and all the variables
-5q+20=0
We move all terms containing q to the left, all other terms to the right
-5q=-20
q=-20/-5
q=+4
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