19
5
43/4 + 22/5 = 19/4 + 12/5 = 95/20 + 48/20 = 143/20 = 73/20
11 + (-5) + (-12) + (-2) =11 - 5 - 12 - 2 =11 - 19 = -8
5x+1=20 5x=20-1 5x=19 5x/5=19/5 x=19/5
5/12 + 8/15 = 19/20
19
19
5
43/4 + 22/5 = 19/4 + 12/5 = 95/20 + 48/20 = 143/20 = 73/20
11 + (-5) + (-12) + (-2) =11 - 5 - 12 - 2 =11 - 19 = -8
5x+1=20 5x=20-1 5x=19 5x/5=19/5 x=19/5
19.
1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 11 + 12 + 13 + 14 + 15 + 16 + 17 + 18 + 19 + 20 = 210
7
5d + 19 = 79 ````-19` -19 5d = 60 `/5` /5 d=12
-5 + (-4) - 12 - 20 - (-10) + 6 = -25