Graphing Method
Substitution Method
Elimination Method
Word Problems
Mystery
100
y = -5/3x + 3 y = 1/3x - 3
(3, -2)
100
y = x - 3 y = 7x + 3
(-1, -4)
100
-4x - 2y = -12 4x + 8y = -24
(6, -6)
100
The sum of two numbers is 92. Their difference is 20. Find the numbers.
(56, 36)
100
8x + y = -16 -3x + y = -5
(-1, -8)
200
y = 4x + 3 y = -x - 2
(-1, -1)
200
y = 4x - 9 y = x - 3
(2, -1)
200
x - y = 11 2x + y = 19
(10, -1)
200
The sum of two numbers is 12. Their difference is 4. Find the numbers.
(8, 4)
200
y = 9x - 9 y = 9
(2, 9)
300
y = -2x + 2 y = -2x - 2
no solution
300
y = 2x + 4 2x + y = -4
(-2, 0)
300
7x + 2y = 24 8x + 2y = 30
(6, -9)
300
The difference of two numbers is 3. Their sum us 13. Find the numbers.
(8, 5)
300
Graph y = -1 y = -5/2x + 4
(2, -1)
400
-6x + 2y = -8 y = -1/2x + 3
(2, 2)
400
y = 2x - 3 2x + y = 5
(2, 1)
400
5x + y = 9 10x - 7y = -18
(1, 4)
400
3x + 3y = -18 y = 2x
(-2, -4)
500
-x + 3y = -9 4x + 4y = 4
(3, -2)
500
y = -2x - 1 x - 2y = 12
(2, -5)
500
16x - 10y = 10 -8x - 6y = 6
(0, -1)
500
8x + 14y = 4 -6x - 7y = -10
(4, -2)
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