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Alg I Substitution

Shows how to substitute or plug in for the variables X,Y in different equations.

Y = X + 1 Y = 2X - 1 2,3
2Y = x + 3 X = Y 3,3
X - Y = 1 X = 1/2Y + 2 3,2
Y = 3X + 1 X = 3Y + 1 7,2
Y = 1/2X + 4 2Y + 2X = 2 -2,3
M = 5P + 8 M = 10P + 3 1,13
X + Y = -4 X - Y = 2 -1, -3
X + Y = 10 Y = X + 8 1,9
3X + Y = 5 4X - 7Y = -10 1,2
X - 2Y = -10 3X - Y = 0 2,6
X + 3Y = 2 -X + 2Y = 3 -1,1
Y - 2X = -5 3Y - X = 5 4,3
-X + Y = 1 2X + Y = 2 -1,0
2X + 2Y = 3 X - 4Y = -1 1,1/2
3X - Y = 2 6X - 2Y = -8 No Solution
2x - y = -4 6x - 3y = -12 Infinitely Many Solutions
H = 6G - 4 H = -3G + 28 20,4
Y = 3X + 8 Y = 2X + 5 -3,-1
6x + 2y = -2 4x + y = 1 2, -7
3x + 2y = 6 x + 2y = -6. 6,6
5x - 4y = 9 x - 2y = -3 5,4
x + 3y = 5 4x + 5y = 13 2,1
x + 3y = 8 2x - y = 9 5,1
y = 2x 5x - y = 8 4,8
y = 2x y = -6x + 4 2,4
Created by: MeganBoyd