eliciamarlow18 eliciamarlow18

10-03-2020
Mathematics

contestada

5x+3y=16
3x-5y=-4
determine the best method to solve each system of equations. then solve the system

Respuesta :

miljanamilovanovic12 miljanamilovanovic12

10-03-2020

Answer:

(x, y) =(2,2)

Step-by-step explanation:

5x+3y=16 /*5

3x-5y=-4 /*3

25x+15y=80 (1)

9x-15y=-12 (2)

(1)+(2): 34x=68

9x-15y=-12

x=68/34

9x-15y=-12

x=2

9*2-15y=-12

x=2

18-15y=-12

x=2

-15y=-12-18

x=2

-15y=-30

x=2

y=-30/(-15)

x=2

y=2

(x,y)=(2,2)

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