anna0604 anna0604

15-09-2019
Mathematics

contestada

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

Respuesta :

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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