Jawapan

  • Pengguna Brainly
2016-01-09T21:15:36+08:00
H - 3m = 20
h = 20 + 3m
1/2h + m = -5

1/2 ( 20 + 3m ) + m = -5
10 + 3 / 2m + m = -5
20 + 3m + 2m = -10m
3m + 2m + 10m = -20
15m = -20
m = -4/3

h - 3 ( -4/3 ) = 20
h + 4 = 20
h = 16
2 4 2