no
y=16 x= -4
3x+6 = x-10 3x-x = -10-6 2x = -16 x = -8
3
x=7
23
x=6
If: -x-3y = -4 and 3x+5y = 16 Then: x = 7 and y = -1
x2 plus 3x plus 3 is equals to 0 can be solved by getting the roots.
3x+5=20 3x=15 x=5
-3x + 5 = 20 -3x = 15 x = -5
3x + 2y = 12 ie 2y = 12 - 3x so y = 6 - 3x/2