Question

7(x + 2) > 5x - 10

Answer 1

x > 12

x > -6

x < -12

x > -12

Answer 2

x > -12

Answer 3

Well. Do you know how to do the distributive property?

Answer 4

@chicagoblkhaks Please do not give the answer without proof. It's against the CoC.

Answer 5

oh oops. probabky should have walked you through that.

Answer 6

so....?

Answer 7

Do you know how to do the distributive property, jennifer? It's either a yes or a no, or maybe not sure.

Answer 8

yes

Answer 9

Alright. Then after doing the distributive property, what does 7(x + 2) become?

Answer 10

7x + 14

Answer 11

Good job! Now the equation looks like:

7x + 14 > 5x - 10

Now what do you think you do next?

Answer 12

um....... subtract 14?

Answer 13

from each side ...

Answer 14

Hmm. Yes. We can subtract both side by 14. But I recommend adding both side by 10 because it's easier to deal with positive number, instead of negative number. But let subtract both side by 14.

7x + 14 > 5x - 10
-14 -14
----------------------
7x > 5x - 24

Now what do you do next?

Answer 15

divide

Answer 16

Hmm. By what?

Answer 17

5

Answer 18

Hmm. Well here's the thing. We can't. :3

Answer 19

So what do you think you have to do now?

Answer 20

Tip: We want to have one x in one side, so that we can find x.
So we must do what?