Question

evaluate $15 + x$ when $x = 0$. $15 + x = 15 + \square$ substitute 0 for $x$ in the expression.

Explanation:

Step1: Substitute x with 0

We are given the expression \(15 + x\) and we know that \(x = 0\). So we substitute \(x\) with \(0\) in the expression.
\(15 + x = 15 + 0\)

Answer:

\(0\) (for the box) and the evaluated expression is \(15+0 = 15\) (if needed, but the box answer is \(0\))