Respuesta :

Answer:

3x

Step-by-step explanation:

[tex]3x[4 + 2 - (7 - 2)] \\ = 3x[6 - (5)] \\ = 3x[6 - 5] \\ = 3x[1] \\ = 3x[/tex]

Answer:

Step-by-step explanation:

3x[4+2-(7-2)]=

3x[6-(5)]=

3x[1]=

3x