Respuesta :
The answer is x=7. I hope this helps. Tell me if you need an explanation!
We want x on the side by itself
So first add 5 to both sides
The equation becomes
3x=21
Then divide
21/3x=7
x=7
So first add 5 to both sides
The equation becomes
3x=21
Then divide
21/3x=7
x=7