6) -7 + 10 = 3 (3 more; total number doesn't matter)
7) 50w + 20
8) c / 5
9) 5 + 2t
10) 4d + 2d
I didn't see the trick problem!
11/10, 12/10, 13/10, 14/10, and 15/10.
Step-by-step explanation: