3.2 part 1 notes c

# 3.2 part 1 notes c - = =-26 3 4 3 y x y x Word Problem 1...

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1 3.2 Notes (part 1) Solving Systems Algebraically Warm-up s Substitute 2y – 1 for x in each equation. Solve for y. 1) x + 2y = 3 2) 2y + 3x = -5 Objectives s solve a system using substitution s translate word problems into a system and solve Solving By Substitution: Must follow a series of steps to solve. .. = - = + 7 2 4 3 4 y x y x Solving by Substitution = - = + 7 2 4 3 4 y x y x

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2 Let’s summarize our steps! 1. Solve for one of the variables s We solved for y 2. Substitute your expression into the other equation and solve for x 3. Substitute the value of x into either equation. Solve for y You try! 1) 2) - = + = - 12 6 3 2 y x y x
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Unformatted text preview: = + =-26 3 4 3 y x y x Word Problem 1) The cost of membership in a health club includes a monthly charge and a one-time initiation fee. Find the monthly charge and initiation fee if the club costs a total of \$100 for 2 months or \$200 for 6 months. Word Problem 2) You can buy CDs at a local store for \$15.49 each. You can buy them at an online store for \$13.99 plus \$6 for shipping. Solve a system of equations to find the number of CDs that you can buy for the same amount at the two stores. 3 Homework s p. 126 # 1-13, 15...
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## This note was uploaded on 05/13/2011 for the course MTH 98 taught by Professor Johnson during the Fall '09 term at Grand Valley State.

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3.2 part 1 notes c - = =-26 3 4 3 y x y x Word Problem 1...

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