To simplify the expression \((p - 3) - (2.4 + 2p)\), we can use the properties of operations as follows:
-
Distribute the negative sign across the second group:
\[ (p - 3) - (2.4 + 2p) = p - 3 - 2.4 - 2p \] -
Combine like terms:
- Combine the \(p\) terms: \(p - 2p = -p\)
- Combine the constant terms: \(-3 - 2.4 = -5.4\)
Putting it all together, we have:
\[
-p - 5.4
\]
Thus, the most simplified form of the expression is: \[ \boxed{-p - 5.4} \]