Its more than the exact answer because you would round 342 to 340 because 350 is an overestimate. I decided because when your rounding you only round up if the ones place value is larger than 5 but in this case its not.
We know that 30/25 is 1.2 or 1 1/5. SO if we divide 20 by that then we'll get 16.6667. So I won't give you the answer because its best that you learn to do this yourself because its more beneficial than telling you. What you have left is 16.6667=4x-4. Combine like terms and you'll get your answer. But if your still stuck then you can just let me know and I'll help you as much as I can.
