It is: 28-21 = 7
21
3x squared minus 25x minus 28
28 minus 27 is 1.
-21.. (or minus 21)
2 hours 28 minutes.
64 minus 28 is 36.
500 minus 28 equals 472.
21 minus 0.5 is 20.5
63 minus 21 is 42.
7/7-1/4 (Original Probloem) 28/28-7/28 (Least Common Multiple) 21/28 = 3/4 (Final Answer)
28/8 - 7/8 = 21/8 = 2 and 5/8
21/47 - 1/2 - 1 1/4:= 7 - 1/2 - 5/4= (28- 2- 5)/4= 21/4