Verified answer

(5y - 10) - (3y + 6)

= 5y - 10 - 3y - 6 . . . notice that both the 3y and the 6 are subtracted

= 2y - 16 . . . collecting terms 5y - 3y = 2y and -10 - 6 = -16

If desired this answer can be factorised: 2(y - 8)

Well, when you bring the minus sign through, it becomes 5y - 10 - 3y - 6.

5y-3y is 2y and -10 - 6 is -16. Your answer should be 2y - 16 or 2(y - 8)

(5y - 10) - (3y + 6) = 5y - 10 - 3y - 6 = 2y -16

5Y-10-3y-6

2y-16