Question

3x + y =4; x + 2y = 3​

Answer 1

3x+y=4.........1
x+2y=3..........2

multiply equation 1 by 2

6x+2y=8......3

subtract equation 2 and 3
5x=5
x=1

put x=1 in equation 1

3(1)+y=4
3+y=4
y=4-3
y=1

solution of xy is(1,1)