Question

Which of the following expressions does not mean the same as the other three

a. x - 17
b. x + (-17)
c. x - (-17)
d. -17 + x

Answer 1

That would be C because essentially the - would cancel out and be a plus

Answer 2

and the rest mean the same thing because basically all are saying x-17 just in different ways. In B the plus would become a minus because it is just saying x-17 and in D it is also saying the same thing just opposite the opposite way.