Pierre correctly simplified an expression. When he substituted x = 2 into the simplified expression, the value was 20. Which cou

Question

2 years ago

13

ld be Pierre’s original expression?

2 answers:

Jlenok [28] · Answer 1 · 2022-12-17T07:31:00+03:00

7 0

answer:2(7x-4)

Explanation:

Anettt [7] · Answer 2 · 2022-12-17T05:04:08+03:00

Answer:

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).