Question

What is the solution of the system?

Answer 1

3x+2y=11 ---(1)
x+4y=2 ---(2)

(1)*2; 6x+4y=22 ---(3)
(3)-(2); 5x=20
x=4
so 4+4y=2
4y=-2
y= -1/2
then (x,y) = (4,-1/2)
------------ B ----------