Which expression can go in the blank to make the equation true?

Question

–7.8 + 7.7 + __?__ = 0

Responses
A –4.3 + (4.2)
B 6.7 + (6.7)
C –4.3 + (–4.2)
D –4.3 + 4.4

Answer 1

C –4.3 + (–4.2)