Depends where you wrote it. If you write too lightly, you can't even scan it, so naturally you won't lose points. If you scan, you should not deduct points as long as it does not affect other problem-solving processes and answers, but if it does, you will probably deduct 1 point. In short, the problem is not big.
Your problem is still small. The answer is y=3x+3. I wrote y=4x+4. I'm really dizzy ~