Question 1075963
{x+y=c
{x-y=a
2x=c+a
x=(c+a)/2
y=c-x=c-(c+a)/2
y=(2c-c-a)/2=(c-a)/2
Put in numbers x=4 y=2
c=6, a=2
x=(6+2)/2, which is 4
y=(6-2)/2, which is 2