19 + 27 + 63 = 109
-19 + m = 27 m = 27 + 19 m = 46
25 + 2 = 27 27 - 19 = 8
55
-187
4 + 15 = 19 + 8 + = 27 (alterative)
10x + (8-x) = -19 10x + 8 = x - 19 10x = x - 27 9x = 27 x = 3
If 27+n = 46 then the value of n = 19.
The answer is 672.
x + 2y = 27 2x - y = 19 y = 2x - 19 x + 2(2x - 19) = 27 x + 4x - 38 = 27 5x = 65 x = 13 y = 2(13) - 19 y = 7
0:19 5:00 0:27 3:53 ____ 9:39 ____ You do the addition just like decimal but remember that there are only 60 seconds (not 100) in a minute and by extension only 60 minutes (not 100) in an hour
20 + 7 7 + 20 8 + 19 19 + 8 9 + 18 18 + 9 10 + 17 17 + 10 11 + 16 16 + 11 15 + 12 12 + 15 14 + 13 13 +14