Answer:
-6 + 12q.
Explanation:
Let's start by simplifying the expression 18-20+2q6q-4q.
First, we can combine the numerical terms 18 and -20 to get -2.
Next, we can combine the q terms by factoring out a common factor of q:
2q6q - 4q = 2q(6q - 2)
Now we can substitute this expression back into our original expression:
18-20+2q(6q - 2)
And finally, we can simplify further by using the distributive property:
18 - 20 + 12q - 4 = -6 + 12q
The simplified expression is -6 + 12q.