Originally Posted by
aridoasis
hahah. ka-funny, pero kabalo na ko. it's a matter of adding instead of subtracting.
50 from mom, 50 from dad.
97 is how much you payed for the shirt, nya 3 pesos change.
so, you're utang should only now be 97.
if i-uli nimu 1 each each to mom and dad, 49 each imu na lang imu utang nila. and you have 1 peso.
for example, i-uli nimu ang 1 remaining peso to your dad, 48 na lang imu utang niya. ergo 49(mom) + 48(dad) = 97 = your remaining utang = value of shirt.
let m=mom, d=dad, y=the money you have, s = shirt, u=your utang=rm+rd
since utang nimu, so
m = -50
d = -50
so, you gain 100
y = 100
shirt is 97
s=97
y = y-s
y = 100 - 97
y = 3
let rm=return to mom, rd=return to dad since you return one peso each
rm = 1
rd = 1
y = y-rm-rd
y = 3-1-1
y = 1
m = m+rm
m = -50 + 1
m = -49
d = d+rd
d = -50 + 1
d = -49
since u = rm+rd
u = (-49)+(-49)
u = -98
if you factor in y,
u = -98+1
u = -97
your remaining utang is 97, which is exactly how much you spent for the shirt. walay nawala.