ellej97 ellej97
  • 04-09-2019
  • Mathematics
contestada

15x + 31y = -3
X= -y +3

Respuesta :

Pashley Pashley
  • 04-09-2019

Step-by-step explanation:

x+y=3

x=3-y

15 (3-y)+31y =-3

45-y+31y=-3

-y+31y =-3-45

30y÷30=-48÷30

y=-1,6

x+y=3

x+-1,6=3

x-1,6=3

x=3+1,6

x=4,6

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