Solve for y
substitute & solve
Find y
Check
Graph
100
4y= -12
y= -3
100
2x + 2y = -2
y= -3
Solve for x
x= 2
100
y - x = -6
x= 4
y= -2
100
2x + 2y = -2
(2,-3)
correct
100
(3,6)
200
y - x = -6
y= x - 6
200
2y + x = 0
y= x - 6
Solve for x
x=4
200
2x + 2y = -2
x= 2
y= -3
200
y - x = -6
(2,4)
incorrect
200
(4,0)
300
y + 2x = 19
y= -2x +19
300
-2(y) + 10x = 46
y= (-2x + 19)
Solve for x
x= 6
300
-2y + 10x = 46
x= 6
y= 7
300
y + 2x = 19
(6,7)
correct
300
y= -6x +12
y= -3x
(4,-12)
400
4x - y = 30
y= 4x - 30
Don't forget to divide by -1
400
2x + 4y = 24
y= 4x - 30
Solve for x
x= 8
400
2x + 4y = 24
x= 2
y= 8
400
4x - y = 30
(8,2)
correct
400
y= 4x - 2
y= x + 4
(2,6)
500
6x + 3y = 57
y= -2x + 19
500
3x + 6y = 33
y= -2x + 19
Solve for x
x= 9
500
3x + 6y = 33
x= 9
y= 1
500
6x + 3y = 57
(1,9)
incorrect
500
y= 2x +5
y= -3x +10
(1,7)