15 +15-43+(5•5)

To solve the expression \(15 + 15 - 43 + (5 \cdot 5)\), we first calculate the multiplication:

\[ 5 \cdot 5 = 25 \]

Now we can rewrite the expression:

\[ 15 + 15 - 43 + 25 \]

Next, we perform the addition and subtraction from left to right:

1. \(15 + 15 = 30\)
2. \(30 - 43 = -13\)
3. \(-13 + 25 = 12\)

So, the final answer is:

\[ \boxed{12} \]