Question

10x+9y = 8
8x - 9y = -1

hola necesito resolver el sistema ​

Answer 1

Respuesta:

10x+9y = 8

8x - 9y = -1

10x+9y=-1

88x-9y=-1

98x=-2

x=-1/49

10·(-1/49)+9y=-1

y=-13/147

(x,y)=(-1/49,-13/147)

10·(-1/49)+9·(-13/147)=88·(-1/49)-9·(-13/147)=-1

-1=-1=-1

(x,y)=(-1/49,-13/147)