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Addition
Subtraction
Multiplication
Questions
Arranging Equations
100
4x - 3y = 5 -2x + 3y = -7
What is (-1, -3)
100
7x - 2y = 5 7x - 3y = 4
What is (-1, 1)
100
4x + y = 5 2x + 5y = 7
What is (3, -3)
100
What operation do we use when the coefficients are the same?
What is subtraction
100
3x + 4y = -6 2y = 3x + 6
What is -3x + 2y = 6
200
-5x - 6y = 8 5x + 2y = 4
What is (2, -3)
200
4x + 2y = 14 4x - 3y =-11
What is (1, 5)
200
8x - 5y = 11 4x - 3y = 5
What is (2, 1)
200
What operation do we use when the coefficients are opposite?
What is addition.
200
2x + 5y = 12 5y = 4x + 6
What is -4x + 5y = 6
300
6x - 4y = 14 -3x + 4y = 1
What is (5, 4)
300
4x - 9y = -21 4x + 3y = -9
What is (-3, 1)
300
What operation do we use first when the coefficients are neither the same or opposites?
What is multiplication
300
x + 4y = 15 2y = x - 9
What is -x + 2y = -9
400
x + 2y = 13 -x + y = 5
What is (1, 6)
400
6x + y = -10 5x + y = -10
What is (0, -10)
400
2x - y = -14 y = 3x + 6
What is (8, 30)
400
What method uses addition or subtraction to obtain a new equation in one variable?
What is elimination
400
2x + y = 10 3y = 2x + 6
What is -2x + 3y = 6
500
-3x - 5y = -7 -4x + 5y = 14
What is (-1, 2)
500
What are the 3 methods of solving we have learned?
What is graphing, substitution, elimination