Question

Fred tried to evaluate an expression step by step.

Find Fred's mistake...


A. Step 1.


B. Step 2.


C. Step 3.


D. Fred did not make a mistake.

Answer 1

C. Step 3

Explanation:

-4 + -5 is -9

just because (-5) is in a bracket, a positive × negative = negative

therefore +(-5) = -5