Untitled1.notebook 1 September 20, 2013 Oct 37:15 AM Solving Systems by Elimination U2S4: I can solve systems of equations algebraically. To solve by elimination: 1. vertically align all the variables 2. transform so that one variable has opposite coefficients 3. add (eliminating a variable) 4. substitute the value and solve to find the other value Oct 37:15 AM Example solve by elimination 4a + 2b = 15 2a + 2b = 7
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Solving Systems by Elimination 2. transform so that one ... · Solving Systems by Elimination U2S4: I can solve systems of equations algebraically. To solve by elimination: 1. vertically
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Untitled1.notebook
1
September 20, 2013
Oct 37:15 AM
Solving Systems by Elimination
U2S4: I can solve systems of equations algebraically.
To solve by elimination:
1. vertically align all the variables2. transform so that one variable has opposite coefficients3. add (eliminating a variable)4. substitute the value and solve to find the other value
Oct 37:15 AM
Example solve by elimination
4a + 2b = 152a + 2b = 7
Untitled1.notebook
2
September 20, 2013
Oct 37:15 AM
Example solve by elimination
3x 7y = 145x + 2y = 45
Oct 37:15 AM
Example solve by elimination
2y = x2x 8y = 1
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September 20, 2013
Oct 37:15 AM
Example solve by elimination
3y x = 2y 1/3 x = 2
Oct 37:15 AM
Example solve by elimination
3x + y = 36x + 2y = 6
Untitled1.notebook
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September 20, 2013
Sep 202:11 PM
Oct 37:15 AM
Assignment: Unit 2, Lesson 7U2S4: I can solve systems of equations graphically and algebraically.