I 'm lean yet a lot of fat in my neck , thighs . How can I lose fat fast ?
How do I solve : -LSB- math -RSB- 25x - 108y = 1 -LSB- / math -RSB- with -LSB- math -RSB- x -LSB- / math -RSB- and -LSB- math -RSB- y -LSB- / math -RSB- integers ?