Example Question - result of expression

Solving an Arithmetic Expression

To solve the given expression: 21 + (-21) + (-4) First, add the positive and negative 21 together. This will cancel each other out because adding a number to its negative is equal to zero: 21 + (-21) = 0 Now you're left with: 0 + (-4) When you add zero to any number, the number remains unchanged. So the answer is simply: 0 + (-4) = -4 The result of the expression is -4.