Question

find the missing number so that the equation has infinitely many solutions. -3x - 16 = -3x + \square

Explanation:

Step1: Recall infinite solutions condition

An equation has infinitely many solutions when both sides are identical after simplification, meaning the constant terms must match once like variable terms are aligned.

Step2: Isolate the missing constant

We have $-3x - 16 = -3x + c$ (where $c$ is the missing number). Subtract $-3x$ from both sides:
$-16 = c$

Answer:

$-16$