4-3*15+56

To solve the expression \(4 - 3 \times 15 + 56\), follow the order of operations (PEMDAS/BODMAS: Parentheses/Brackets, Exponents/Orders, Multiplication and Division (from left to right), Addition and Subtraction (from left to right)).

1. Perform the multiplication first: \[ 3 \times 15 = 45 \]

2. Substitute back into the expression: \[ 4 - 45 + 56 \]

3. Now proceed from left to right:

   • First, do the subtraction: \[ 4 - 45 = -41 \]

   • Then, add 56: \[ -41 + 56 = 15 \]

So, the final result is \(15\).