Seudónimo Seudónimo
  • 08-03-2020
  • Mathematics
contestada

{13x−12y=14
{11x−4=18y
System of Equation
Please explain

Respuesta :

miljanamilovanovic12
miljanamilovanovic12 miljanamilovanovic12
  • 08-03-2020

Answer:

x=2, y=1

Step-by-step explanation:

13x-12y=14

11x-4=18y or 11x-18y=4

13x-12y=14 /*3

11x-18y=4 /*(-2) then

39x - 36y=42 (1)

-22x+36y=-8 (2)

(1)+(2) 17x=34

-22x+36y=-8

x=34/17

-22x+36y=-8

x=2

-22*2+36y=-8

x=2

-44+36y=-8

x=2

36y=-8+44

x=2

36y=36

x=2

y=36/36

x=2

y=1

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