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18q-6q-4q+-7q+-16q=15
We move all terms to the left:
18q-6q-4q+-7q+-16q-(15)=0
determiningTheFunctionDomain 18q-6q-4q-7q-16q-15++=0
We add all the numbers together, and all the variables
-15q=0
q=0/-15
q=0
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