Substitution
Substitution part 2
Elimination
Elimination part 2
Elimination part 3
100
y=5x+1 4x+y=10
(1,6)
100
y=-3x+4 -6x-2y=-8
infinitely many
100
-v+w=7 v+w=1
(-3,4)
100
6r-6t=6 3r-6t=15
(-3,-4)
100
x+5y=17 -4x+3y=24
(-3,4)
200
y=4x+5 2x+y=17
(2,13)
200
x=y-1 -x+y=-1
no solution
200
y+z=4 y-z+8
(6,-2)
200
6c-9d=111 5c-9d=103
(8,-7)
200
6x+y=-39 3x+2y=-15
(-7,3)
300
y=3x-24 y=2x-5
(29,53)
300
3x+y=-5 6x+2y=10
no solution
300
-4x+5y=17 4x+6y=-6
(-3,1)
300
x+y=2 -3x+4y=15
(-1,3)
300
3x+4y=29 6x+5y=43
(3,5)
400
y=3x-2 y=2x-5
(-3,-11)
400
-1=2x-y 8x-4y=-4
infinitely many
400
a+4b=-4 a+10b=-16
(4,-2)
400
x-y=-8 7x+5y=16
(-2,6)
400
12x-3y=-3 6x+y=1
(0,1)
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