Question

What's the answer for number 4? And did I graph it right?

Answer 1

Solution is (3,-3).

3x+y=6

x-intercept; y=0, x=2 (2,0)

y-intercept; x=0, y=6 (0,6)

2y-x=-9

x-intercept; y=0, x=9 (9,0)

y-intercept; x=0, y=-4.5 (0,-4.5)