Question

Which of the following expressions are equivalent to 7.2 - 3.6?

(A 7.2 + 3.6 )
(B 7.2 + - 3.6 )
(C 7.2 + (-3.6)
(D 7.2 - - 3.6)

Answer 1

B and c
This is true because adding a negative is the same as subtracting

Answer 2

B and C

Explanation:

7.2 - 3.6 is the original equation

B states that 7.2 + -3.6 is equivalent, and it is right because and positive and negative multiplied by each other gives a negative

C states that 7.2 + (-3.6) is equivalent, and it is also correct because it would still be a negative number because its subtracting

A and D would just add up so it wouldn't be equivalent to 7.2 - 3.6