Question

6x-5y =9=
9x+ 7y=-1
Ecuacion de igualacion​

Answer 1

Respuesta:

x=2/3, y= -1

Explicación paso a paso:

6x-5y= 9

9x+7y= -1

x=(5y+9)/6

x= (-1-7y)/9

5y+9/6 = -1-7y/9

45y+81 = -6-42y

87y = -87

y= -1

Reemplazamos en "x= (-1-7y)/9":

x= -1 - [7(-1)] /9

x= -1 + 7/9

x= 6/9

x= 2/3