Substitution
y=-3x-21
2x-4y=14
x=-5
y=-6
2x-10y=18
-2x-5y=-18
x=9
y=0
v+10 < 8 or -5+v>4
v < -2
v > 9
-8x-6y=0
-6x-y=-14
x=3
y=4
y=3x-2
2x+5y=-10
x=0
y=-2
-x-2y=-8
x-10y=-28
x=2
y=3
2n+7>17 or 2-9n>74
n > 5
n < -8
-2x+5y=27
4x+6y=-6
x=-6
y=3
y=-5x-6
-7x+2y=22
x=-2
y=4
9x-2y=-5
-4x+2x=10
x=1
y=7
6b+10<34 and 9b+6<24
2 < b < 4
-7x-2y=-4
4x-3y=23
x=2
y=5
-2x-4y=24
y=6x+20
x=-4
y=-4
2x+y=-12
-2+y=-4
x=-2
y=-8
-8v+7>-17 and 6-9v<42
-4 < v < 3
2x-7y=22
-3x+2y=-16
x=4
y=-2
-3x-8y=-21
y=-3x+21
x=7
y=0
-6x+8y=28
-3x-8y=-10
x=-2
y=2
4x+4>6x+2 and x-2<2x+10
-12 < x < 2
8x-7y=4
10x-8y=2
x=4
y=4