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Mathematics 21 Online
OpenStudy (anonymous):

1. (x/6) + 2 = 2.5 2. 2x + 7 = -5 3. (x/5) -6 = -6 4. 7(x+9) = 91 5. 3(6-x) = 24 6. 5(1+x) + 3x = 69 7. -2(3+x) = -26

OpenStudy (anonymous):

i just got 100 xp for posting this. what is the level for?

OpenStudy (mathteacher1729):

You get points for posting and asking questions. :)

OpenStudy (anonymous):

1. x/6 = 0.5 x = 3

OpenStudy (mathteacher1729):

Question for you -- which would you say is the EASIEST (for you) problem of these 7 and which is the HARDEST (for you) of these 7?

OpenStudy (anonymous):

thats pretty cool

OpenStudy (anonymous):

not really any of them are the easiest. we just started to learn these

OpenStudy (anonymous):

2. x=-6

OpenStudy (anonymous):

3. 0

OpenStudy (anonymous):

4. x=4

OpenStudy (anonymous):

6. x=8

OpenStudy (anonymous):

5. -1

OpenStudy (anonymous):

7. 10

OpenStudy (anonymous):

7. x=16

OpenStudy (anonymous):

7. 3+x = 13 x = 10

OpenStudy (mathteacher1729):

So quick question for BrownCreature -- can you phrase problem #2 in terms of money? (This is a trick I often use with my students to help them undersatnd how to solve these kinds of problems)

OpenStudy (anonymous):

Refer to the attached Mathematica solution.

OpenStudy (mathteacher1729):

I wonder how much of this is actually helping BrownCreature actually understand how to solve these problems on his/her own?

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