Question

Substitucion
3x+ 2y=12
X+ 5y=12

Answer 1

Respuesta:

x = 36/13 y = 24/13

Explicación paso a paso:

Método de sustitución:

3x+ 2y=12

X+ 5y=12 => x = 12 - 5y

3(12 - 5y) + 2y = 12

36 - 15y + 2y = 12

-13y = -24 => y = 24/13 x = 36/13

Comprobación:

3(36/13) + 2(24/13) = 12

108/13 + 48/13 = 12 => 156/13 = 12

12 = 12

36/13 + 5(24/13) = 12

36/13 + 120/13 = 12 => 156/13 = 12

12 = 12

RPTA: x = 36/13 y = 24/13