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0.5q=7.5+q
We move all terms to the left:
0.5q-(7.5+q)=0
We add all the numbers together, and all the variables
0.5q-(q+7.5)=0
We get rid of parentheses
0.5q-q-7.5=0
We add all the numbers together, and all the variables
-0.5q-7.5=0
We move all terms containing q to the left, all other terms to the right
-0.5q=7.5
q=7.5/-0.5
q=-15
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