Question

Select the expressions that are equivalent to -5(-9f + 7) - 7.

-42f + 45
-9f-42
(-9f + 7)-5-7
45f - 42

Answer 1

The answers are 45f - 42 and -42+45f

Answer 2

The answers are 45f - 42 and -42+45f

Explanation:

-5(-9f + 7) - 7

45f (-35 -7)

45f -42

also

-42 + 45f