When solving an equation, Drew's first step is shown below. Which property justifies Drew's first step?

Original Equation:
-10(–202 – 9) +1 = 10x2 – 7

First Step:
-10(–2x2 – 9) = 10x2 – 8

associative property of addition

commutative property of multiplication

distributive property of
multiplication over addition

subtraction property of equality