What is the mathematical expression for the following equation?
2x + 3 = 7
2x + 3 = 7
2x = 4
Therefore, the simplified mathematical expression for the equation is x = 2.
Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
What is the mathematical expression for the following equation?

### Response:
2x + 3 = 7
2x = 4
Therefore, the simplified mathematical expression for the equation is x = 2.