Respuesta :

Answer:

x = 1

Step-by-step explanation:

3x + 1 = 7 - 3x

3x + 3x = 7 - 1

6x = 6

x = 6/6

x = 1

Answer:

x=1

Step-by-step explanation:

1) 3x+1=7-3x

2) 6x+1=7

3) 6x=6

4) x=1