IDNLearn.com provides a collaborative platform for sharing and gaining knowledge. Ask your questions and get detailed, reliable answers from our community of knowledgeable experts.

Which is an equivalent expression of:
−2(5r+ 3) + 9r?
A) −19r – 3
B) −10r – 6
C) −10r + 3
D) −r– 6


Sagot :

The answer is D) -r-6

if you distribute the -2 to the 5r and 3 you get -10r and -6.

-10r + 9r = -r (then just add on the negative 6)

-r-6
Answer: D

Explanation:

Distribute -2 through the parentheses

Then combine like terms