Question

x+y = 107
60x + 40 y = 5800

valor de x y y​

Answer 1

Explicación paso a paso:

{x + y = 107

{60x + 40y = 5800

{x = 107 - y

{60x + 40y = 5800

60(107y - y) + 40 = 5800

6420 - 60y + 40y = 5800

6420 - 20y = 5800

-20y = 5800 - 6420

-20y = -620

y = 31

x = 107 - 31

x = 76

(x, y) = (76, 31)

Besitos OvO