anna0604 anna0604
  • 15-09-2019
  • Mathematics
contestada

6. 5x + 2y = -3
3x + 3y = 9

Respuesta :

Katieg3593
Katieg3593 Katieg3593
  • 15-09-2019

Answer:

x=-3

y=6

Step-by-step explanation:

5x+2y=-3             3x+3y=9

                            3x=9-3y

                              x=3-y

5(3-y)+2y=-3

15-5y+2y=-3

18=3y

6=y

                            x=3-y

                             x=3-6

                             x=-3

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