Question

SISTEMAS DE ECUACIONES LINEALES

-11X + 8Y = 3
6X -Y = 5 IGUALACION

Answer 1

Por igualación :

-11x +8y=3
8y =3+11x
y = (3+11x)/8

6x-y=5
6x-5 =y

Igualamos las "y" :

(3+11x) /8 = 6x-5
3+11x = 8(6x-5)
3+11x = 48x -40
3+40 = 48x -11x
43 = 37x
43/37 = x