7x+2y=4 and - 5x-3y=5-5x-3y=5

one solution : (2, - 5)

Step-by-step explanation:

hello:

the system is : 7x+2y=4 ... (*)

-5x-3y=5 ... (**)

multiply (*) by 3 and (**) by 2 you have : 21x+6y = 12 ... (1)

-10x-6y = 10 ... (2)

add (1) and (2) : 11x=22 so x = 2

put this value in (2) : - 20-6y = 10

-6y=30 so y = - 5

one solution : (2, - 5)