Answer:
6+(5 x 2)+5=21
the way you wrote this was kinda weird so I don't know what you expected as an answer
Step-by-step explanation:
5 x 2=10
10+6=16
16+5=21
21
13/8 or 1 5/8
3/4 becomes 7/8 when add it is 13/8
60-3d + 20-6 =4d
74-3d =4d
-3d =4d -74
-7d = -74
D=74/7
Well, 99 times 10 is 990, 990 plus 9 is 999. If you understand pls respond