Question

Simplify 17d - 5e + 3e - 15d.
A. 0
B. 2d + 8e
C. 2d - 2e
D. 32d + 8e

Answer 1

First you need to combine like terms.

so you have 17d-15d and -5e +3e. Complete these basic addition/subtraction to find the answer.

Answer 2

so would it be B?

Answer 3

-5+3 = ?

Answer 4

-8

Answer 5

If it were -3, that would be correct, however you are ADDING (positive) to a negative number. So you will actually end up at -2, as you add 3 to -5.

Answer 6

so it would be C