Question

find the missing number so that the equation has infinitely many solutions. -2x + 2 = \square x + 2

Explanation:

Step1: Recall infinite solutions condition

A linear equation $ax + b = cx + d$ has infinitely many solutions if $a = c$ and $b = d$.

Step2: Match coefficients of $x$

Here, $b = d = 2$, so set $-2 = c$.

Answer:

$-2$