Pierre correctly simplified an expression. When he substituted x = 2 into the simplified expression, the value was 20. Which could be Pierre’s original expression?

a) 2(7x-4)

Explanation:

Let us first simplify these expressions by multiplying them:

a) 2(7x-4) = 14x-8

b) 2(x-19) = 2x-38

c) 2(x+10) = 2x+20

d) 2(5x+1) = 10x+2

Now, we just plug in x=2 into these simplified expressions:

a) 14x-8 = 28-8 = 20

b) 2x-38 = 4-38 = -34

c) 2x+20 = 4+20 = 24

d) 10x+2 = 20+2 = 22

Now, we see that the original expression was 2(7x-4).

what are the words supposed to be listed?

"why don't you like me the way i am? " i cried. "i'm not a genius! i can't play the piano, and even if i could, i wouldn't go on tv if you paid me a million dollars! "

explanation:

the conflict between jing-mei and her mother is over jing-mei's piano lessons since her mother wants her to become a prodigy but she does not want to play it any more.