Answer: 7y-6
Explanation:
Difference is the same as take away.
Therefore, the difference of 10y and 3y+6 is the same as 10y take away 3y+6
Set up the equation then to be
10y-(3y+6)
-(3y+6)=-1(3y+6)
10y-1(3y+6)
distribute the -1
10y-3y-6
Combine like terms
7y-6