20 - (9 * x) = -7
27 = (9 * x)
x= 3.
1 is the coefficient.
A better explanation would be that we cannot solve the value for x because we do not know the coordinates for the center of the circle.
Good point.
1 and 17, -1 and -17 are the only answers because 17 is prime.
You'll have to be a bit more specific and provide more info...
Ah yes.. thanks for the clarification!
This might help, I'm not sure...
Since there are no values to the variables, the only way to simplify the expression is to pull out the gcf.
6a+1ab= 2a(3+5b).
