Please answer 17 and 18, thx! Show work if you can! 17. Solve the system of equations by your method of choice. Be sure to show your work.6x + 7y= 20y = 2xa) (2, 1)b) (3 , 1)c) (1, 3)d) (1 , 2)18. Solve the system of equations by your method of choice. Be sure to show your work.-5х + у%3D-2-Зх + бу %3-12a) (2, 3)b) (5, 4)c) (3, 1)d) (0, -2)19. Solve by elimination.3x+7y=23-3x-7y=-17a) Infinite solutionsb) (-3,3)с) (3,3)d) No solution20. Solve by any method. Be sure to show your work.-х-5у-5z %3D24x - 5y + 4z = 19x+5y – z = -20a) (-2, 3, 3)b) (-2, -3, 3)с) (-3, 3, -2)d) No solution

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17. Solve the system of equations by your method of choice. Be sure to show your work. 6x + 7y= 20 y= 2x a) (2, 1) b) (3 , 1) c) (1 , 3) d) (1 , 2) 18. Solve the system of equations by your method of choice. Be sure to show your work. -5x + y=-2 -3x + 6y = -12 a) (2 , 3) b) (5, 4) c) (3, 1) d) (0, -2)

17. Solve the system of equations by your method of choice. Be sure to show your work. 6x + 7y= 20 y= 2x a) (2, 1) b) (3 , 1) c) (1 , 3) d) (1 , 2) 18. Solve the system of equations by your method of choice. Be sure to show your work. -5x + y=-2 -3x + 6y = -12 a) (2 , 3) b) (5, 4) c) (3, 1) d) (0, -2)

Algebra: Structure And Method, Book 1

(REV)00th Edition

ISBN:9780395977224

Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole

Publisher:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole

Chapter9: Systems Of Linear Equations

Section9.7: Puzzle Problems

Problem 17P

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