Activity: Follow Me! Solve the following real-life problems using systems of linear equations by graphing, substitution, elimination. Follow the steps written on the left. A. Solve by graphing. You sell disposable masks for 12 pesos each and washable face masks for 18 pesos each. You collect 252 pesos selling a total of 17 pieces of face masks. How many of each type of face mask did you sell? Representation: Tet x be the number of disposable face mask Let y be the number of washable face mask Translate into mathematical equations. 1.You sell a total of 17 pieces of disposable and washable face masks. Answer: 1.

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