Question

me ayudan porfaaa ... (gracias)​

Answer 1

Respuesta:

2 + 3 = 5

Explicación paso a paso:

1)

4 + 5 + 6 = 15

2)

4 + 3x + z = 15

3x + z = 11

x = (11 - z)/3

3)

4 + x + 4z = 15

x + 4z = 11

x = 11 - 4z

igualamos las "x"

(11 - z)/3 = 11 - 4z

11 - z = 33 - 12z

12z - z = 33 - 11

11z = 22

z = 2

x = 11 - 4z

x = 11 - 4(2)

x = 11 - 8

x = 3