Find the solution set for the system of equations.
9x + 5y = 28
5x + 9y = 56

Question

23-08-2016
Mathematics

contestada

Find the solution set for the system of equations.
9x + 5y = 28
5x + 9y = 56

Respuesta :

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nobillionaireNobley nobillionaireNobley · Answer 1 · 2016-08-26T04:16:15+02:00

nobillionaireNobley nobillionaireNobley

26-08-2016

9x + 5y = 28 . . . . . (1)
5x + 9y = 56 . . . . . (2)

(1) x 5 => 45x + 25y = 140 . . . . . (3)
(2) x 9 => 45x + 81y = 504 . . . . . (4)

(3) - (4) => --56y = -364 => y = 6.5

From (1), 9x + 5(6.5) = 28 => 9x = 28 - 32.5 = -4.5 => x = -4.5/9 = -0.5

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LilSnipYT LilSnipYT · Answer 2 · 2021-05-11T01:52:03+02:00

LilSnipYT LilSnipYT

11-05-2021

Answer:

-1/2,13/2

Step-by-step explanation:

Plato

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Find the solution set for the system of equations. 9x + 5y = 28 5x + 9y = 56

Respuesta :

Otras preguntas

Find the solution set for the system of equations.
9x + 5y = 28
5x + 9y = 56