Question

Metodo de sustitución.

4x+5y=5
-10y-4x=-7

Answer 1

Respuesta:

Explicación paso a paso:

4x + 5y = 5

-10y - 4x = -7

° 4x + 5y = 5

4x = 5 - 5y

x = 5 - 5y / 4

°-10y - 4x = -7

-10y - 4(5 - 5y/4) = -7

-10y -(20 - 20y/ 4) = -7

-40y -20 - 20y / 4 = -7

-20 - 60y = -7

-13 = 60y

y = -13/60

° 4x + 5y = 5

4x + 5(-13/60) = 5

4x - 13/12=5

48x - 13 / 12 = 5

48x - 13 = 60

48 x = 73

X =73/48