To solve this, let's first focus on the equation provided:
$x - 2 = 5$

Solving for $x$:

1. Add 2 to both sides to isolate $x$: $x = 5 + 2$
2. Simplify: $x = 7$

So, $x = 7$. Marin gave you 7 dildos.

Would you like any further details or explanations on this?

Here are 5 related questions that expand upon this concept:

1. If Marin gives another friend $y - 3 = 10$, how many did he give them?
2. What if Marin gave $x + 5 = 12$ dildos to someone, how many was that?
3. How many dildos would Marin have left after giving you 7 out of his 20?
4. If Marin decided to give away all his dildos, but he wants to keep 3, how many will he give away?
5. If Marin gives $x + 1$ dildos to one friend, how would you solve for $x$?

Tip: When solving linear equations like $x - a = b$, always aim to isolate the variable $x$ by reversing the operation using addition or subtraction!