x = 11-4y, 3x=2y-5

Substitute the first equation into the second: 3(11 - 4y) = 2y - 5

33 - 12y = 2y - 5

38 = 14y

y = 38/14 = 19/7

Substitute y back into the first equation: x = 11 - 4(19/7) = 11 - 76/7 = (77 - 76)/7 = 1/7