Jika x = 156788 – 156788/2, dan y = 156788/2, maka...

maka x = 156788-y
> x+y-156788=0

x = 156788 – 156788÷ 2
x = 156788 – 78394
x = 78397

y = 156788 ÷ 2
y = 78394