Question

spiral review
the equation $30 + (-30) = 0$ is an example of two numbers whose sum is $0$.
write a different equation with two numbers whose sum is $0$.
$\square + \square = 0$

Explanation:

Step1: Pick a positive number

Choose $15$ (any positive number works)

Step2: Find its additive inverse

The inverse of $15$ is $-15$

Step3: Form the sum equation

$15 + (-15) = 0$

Answer:

$15 + (-15) = 0$

(Note: Any pair of a number and its negative counterpart is valid, e.g., $7 + (-7) = 0$, $22 + (-22) = 0$)