Question

and i also need help to solve this one the last one by graphing just give me please the two points
3x+4y=20
3x-2y=8

Answer 1

any points... it always nice to pick x=0 - find y=...
and let say x=1 - find corresponding y.
do the same for the second equation

Answer 2

1) x=0, so y=5
and x=2, y=7/2
2) x=0, y=-4
y=0, x=8/3

you can pick ANY values of x or y & find corresponding values of y & x