Final answer:
The equivalent expression for -(y + 13) is found by distributing the negative sign, resulting in -y - 13.
Step-by-step explanation:
The student has asked to find an equivalent expression for -(y + 13). To find the equivalent expression, we need to distribute the negative sign across the parentheses. This means we multiply both y and 13 by -1.
The equivalent expression is:
Therefore, the equivalent expression for -(y + 13) is -y - 13.