Question

find the missing number so that the equation has infinitely many solutions. 2(2x - 6) - 2x + 15 = 2x + \square

Explanation:

Step1: Expand left-hand side

$2(2x - 6) - 2x + 15 = 4x - 12 - 2x + 15$

Step2: Simplify like terms

$4x - 2x - 12 + 15 = 2x + 3$

Step3: Match for infinite solutions

For $2x + 3 = 2x + \square$, the missing value must make both sides identical.

Answer:

3