Solve the following system of equations graphically: `3x+y+1=0;\ \ \ 2x-3y+8=0`

Solve the following system of equations graphically: 2x+y-3=0;\ \ \ 2x-3y-7=0

Solve the following system of equations graphically: x+y=4;\ \ \ 2x-3y=3

Solve the following system of equations graphically: x-2y=5;\ \ \ 2x+3y=10

Solve the following system of equations graphically: x+y=3;\ \ \ 2x+5y=12

Solve the following system of equations graphically: 2x+3y=4;\ \ \ x-y+3=0

Solve the following system of equations graphically: x-2y=6;\ \ \ 3x-6y=0

Solve the following system of equations graphically: 3x+y+1=0;quad 2x-3y+8=0

Solve the following system of equations graphically: 2x+3y+5=0;\ \ \ 3x-2y-12=0

Solve the following system of equations graphically: 2x+3y=8;x+4y=9

Solve the following system of equations graphically: 2x-3y+6=0,\ \ \ 2x+3y-18=0 Also, find the area of the region bounded by these two lines and y-axis.