Question

−2(x + 3) = −2(x + 1) − 4.

Answer 1

$- 2(x + 3) = - 2(x + 1) - 4 \\ - 2x - 6 = - 2x - 2 - 4 \\ - 2x = - 2x \\ x = x$

Every x is a solution.