Question 41903
x - 6y = 11___________(1)


3y - 3x = 12 
or y - x = 12/3 
or y - x = 4___________(2)


Adding (1) and (2) we can eliminate 'x'.
Thus we have,
y - 6y = 4 + 11
or -5y = 15
or y = -15/5 = -3
Substituting y = -3 in (2) we have
-3 - x = 4
or x = -3 -4 = -7

Answer: x = -7, y = -3