Square root 2x-1+2=5 what is x equal to?

Because your question isn't specific or formatted exactly, I cannot guarantee that my answer is what you expect.

√2x - 1 + 2 = 5

√ (2x + 1) ² = 5²

2x + 1 = 25

2x = 24

/2 / 2

x = 12

Therefore x = 12.

Proof:

√2x - 1 + 2 = 5

√2 (12) - 1 + 2 = 5

√24 - 1 + 2 = 5

√25 = 5

5 = 5