Question

-24 + 2(y - 9)
Can I have it explained too please?
Thank you!

Answer 1

What's the goal of the problem?

Answer 2

To simplify it, sorry

Answer 3

First you need to distribute the 2 to the y and - 9

Answer 4

okay

Answer 5

so 2y and -18?

Answer 6

Yes, now combined your like terms

Answer 7

-42 + 2y:?

Answer 8

Yep. And in general we list things in decreasing power, so the 2y would be put first.\[2y - 42\] or you could divide both terms by 2 and have a more simple \[2(x + y)\] arrangement.

Answer 9

hold on brb

Answer 10

okay sorry

Answer 11

so would the answer be -40y?

Answer 12

Your answer of -42 + 2y is correct @bakablinkie :-)

Answer 13

-40y is not correct because you cannot combine -42 + 2y any any further, they are unlike terms due to the variable y in 2y.

Answer 14

Recall 2y means 2 • y and the value of this term depends on the value of the variable y,

while the value of -42 does not depend on y.

Answer 15

$$\Huge -24 + 2(y - 9) = -24 + 2y -18$$

Specifically when you combined -24 and -18

you were combining the numerical terms to get the simpler -42.

Answer 16

$$\Huge 2y$$ that^ is a variable term.

Answer 17

-24 + 2(y - 9) --> -24 + 2y - 18 --> -24 -18 + 2y --> -42 +2y
The answer is -42 + 2y.