x= -3y -2
3y² +6y²+4y = 28
9y²+4y-28 = 0
(y+2)(9y-14) = 0
y₁ = -2
y₂ = 14/9 = 1 5/9
x₁ = 6-2=4
x₂ = -14/3-2 = -6 2/3
x= -3y -2
3y² +6y²+4y = 28
9y²+4y-28 = 0
(y+2)(9y-14) = 0
y₁ = -2
y₂ = 14/9 = 1 5/9
x₁ = 6-2=4
x₂ = -14/3-2 = -6 2/3