can you help me with this assignment?

Assignment: One of the best tools for learning is finding errors in your work.

It's true that we learn more from our mistakes than from our easy successes. This first week we are going to look at mistakes by intentionally making mistakes, then correcting other people's intentional mistakes. That sounds crazy but it's a great exercise!

For starters, you are going to find the mistake in my solution below, then correct it.

2x+3=7

(2x+3)2=72

2x+3=49

2x=52

x=26

Fix my mistake!