Question

solve by graphically x+y=5
x-y=8​

Answer 1

Answer:

$x + y = 5 \\ x - y = 8 \\ by \: addition \: we \: get \\ 2x = 13 \\ x = \frac{13}{2} \\ now \: putting \: the \: value \: of \: x \\ we \: get \\ y = - \frac{3}{2}$