Question

The solution of 12x - 7>6. need answer checked

Answer 1

Great. Show us how you obtained your answer.

Answer 2

12x - 7+7>6+7
12x>6+7
12x>13
x=1

Answer 3

5 people said that was how ya do it

Answer 4

Well,
we have :
12x - 7 > 6
the inequation is equivalent of the following :
12x - 7 + 7 > 6 + 7
12x > 13
(1/12) * 12x > 13/12
1*x > 13/12
finally :
x > 13/12

therefore the set S of solutions is :

S = ( 13/12 , +oo )

Answer 5

hope that helped

Answer 6

Ben, this is a good start, but a questionable finish.

12x - 7+7>6+7 You've added 7 to both sides. Great.
12x>6+7You've simplified. Fine.
12x>13 Also fine.
x=1 What happened to the inequality symbol? And where did the 1 come from?
Think about this and try again, please.

Answer 7

I'm getting different answers on multiple choices

Answer 8

Add 7 to both sides.
12x > 13

Divide with 12
x > 13/12

Answer 9

I'm sorry. But that's life.
Keep trying.
I've done my best to give you feedback on where the problem lies.

Answer 10

http://prntscr.com/9egjw5

Answer 11

Mathematics isn't normally done by crowd sourcing. It has to lead to a correct conclusion. It is not significant if 2,000,000 people do it in a way that leads to an incorrect result.

Answer 12

ill do the question over

Answer 13

No need to. Just go back to your 12x > 13 and decide what to do next.

Answer 14

ok

Answer 15

after the 12x>13 do u divide or what

Answer 16

nvm

Answer 17

You want to solve for x, so divide both sides by 12.

Answer 18

that operation will "isolate" x.

Answer 19

ali, said to add 7 to both

Answer 20

Don't use your calculator. It may be set to something that rounds to 1.

Answer 21

ok

Answer 22

2?

Answer 23

Why isn't it 13/12? Is there an instruction to pick the "nearest integer" or something like that?

Answer 24

Ben, sounds as tho' you have too many helpers, not all of whom are qualified to help you. It'd be so much better to develop confidence in your own work, which comes with practice.

Answer 25

ok

Answer 26

To review what you've done:

12x - 7+7>6+7 You've added 7 to both sides. Great.
12x>6+7You've simplified. Fine.
12x>13 Also fine.
x=1 What happened to the inequality symbol? And where did the 1 come from?
Think about this and try again, please.

12x>13 is fine. Now solve for x. What does that mean? Isolate x by itself on the left side. How do you get rid of the coefficient 12 on the left side? Divide both sides of the inequality by 12, then STOP.

Try it, please.

Answer 27

got it

Answer 28

12x - 7 > 6 -> (12x - 7) + 7 > 6 + 7 -> 12x + (-7 + 7) > 6 + 7 -> 12x + 0 > 13 -> 12x > 13 -> x > 13/12

Answer 29

what is that

Answer 30

1 is not > 13/12, so you have to find another selection that is greater than 13/12.

Answer 31

http://openstudy.com/updates/50933956e4b0b86a5e530515 here is someone elses answer