2) 2x + 3y = 11

-x-5y=-23

one solution (-2; 5)

Step-by-step explanation:

hello : 2x + 3y = 11 ... (*)

-x-5y=-23 ... (**)

by (**) : x = - 5y+23

put this value into (*) : 2 (-5y+23) + 3y=11

-10y+46+3y=11

-7y = - 35

y=5

but x = - 5y+23

so : x = - 5 (5) + 23 = -2