i will give a medal

please solve and describe the steps it took to get the answer.
|2f+9 |

Question

i will give a medal

please solve and describe the steps it took to get the answer.
|2f+9 |< 13

igreen · Answer

You break this into two separate equations:

2f + 9 < 13

and

2f - 9 < 13

---------------

Can you solve both of those?

anonymous · Answer

no i am not sure how to do any of this stuff

igreen · Answer

Okay.

2f + 9 < 13

First you subtract 9 to both sides so you can get 2f by itself.

2f + 9 - 9 < 13 - 9

The 9's on the left cancel out leaving you with:

2f < 13 - 9

Now we can subtract these:

2f < 4

Divide 2 to both sides:

2/2f < 4/2

The 2's on the left cancel out leaving you with:

f < 4/2

Can you divide that?

anonymous · Answer

og your a life saver thank you very much

anonymous · Answer

f=2

igreen · Answer

Yes, but that's only one answer.

igreen · Answer

Now we solve our other equation:

2f - 9 < 13

Add 9 to both sides of the equation:

2f - 9 + 9 < 13 + 9

The 9's cancel out..we normally don't include this in our work.

2f < 13 + 9

Add:

2f < 22

Can you divide 22 / 2?

anonymous · Answer

11

anonymous · Answer

f=11

igreen · Answer

Yep, so F = 2 and 11

anonymous · Answer

thank you

igreen · Answer

No problem.