Answer:
Explanation:
7e^x=343
/7 /7
e^x=49
By trial and error, x must be between 3 and 4, but closer to 4.
Further trial and error says x must be between 3.8 and 3.9, but closer to 3.9
Another trial and error says x must be between 3.89 and 3.9.
The closest answer I got was 3.891821