In the following expression, n is a rational number:

Question

-0.7(n+(-n))
Which expression below is equivalent to this expression?
A. -n(-0.7 +(-0.7))
B. 0.7n + 0.7n
C. -0.7n -0.7n
D. - 0.7 * n + (-0.7) *

Answer 1

(-n)

Answer: D. - 0.7 * n + (-0.7) * (-n)

Answer 2

yass i got 100%

Answer 3

Ummmh

-0.7(n+(-n))
= -.7(n - n)
= -.7(0)
= 0