Answered: 1.) Solve for x and y x-y = 20 2x…

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1.) Solve for x and y x-y = 20 2x +3Y= 40 Substitution Method

Elementary Geometry For College Students, 7e

7th Edition

ISBN:9781337614085

Author:Alexander, Daniel C.; Koeberlein, Geralyn M.

Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.

Chapter10: Analytic Geometry

Section10.CR: Review Exercises

Problem 24CR

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Question

1.) Solve for x and y x-y = 20 2x +3Y= 40 Substitution Method

2.) Solve for x and y, x = y 4x +3y = 90 Substitution Method

3.) Solve for t and r use elimination method 3r + 3t = 9 r + t = 9

4.) Solve question 1 using the elimination method.

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