substitute y=7-2x and you have
x^2 - x(7-2x) = 6
x^2 - 7x + 2x^2 - 6 = 0
3x^2 - 7x - 6 = 0
(3x+2)(x-3) = 0
x = 3 or -2/3
so, y = 1 or 25/3
2x+y=7
x(2)-xy=6
pl plz help me someone
1 answer
x(2)-xy=6
pl plz help me someone
1 answer