Respuesta :
Answer:
Hi!
To begin solving we need to isolate the variable.
To do that we can subtract 4 from both side
3x -4 = 13 - 4
Simplified it would be
3x = 9
Now we need to continue to isolate the variable.
To do that we divide both sides by 3
3x/3 = 9/3
Simplified it would be
x = 3
~Courtney
Subtract 4 from both sides and u get 3x=9
Divide both sides by 3 and x=3
Divide both sides by 3 and x=3