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Mathematics 13 Online
OpenStudy (book):

Help ?

OpenStudy (book):

OpenStudy (mathmale):

What about the last problem? Have you finished it?

OpenStudy (book):

Yes, i got -11 and 17

OpenStudy (mathmale):

Hint: Start by subtracting 4 from both sides. What do you obtain by doing that?

OpenStudy (book):

um 13 on the right

OpenStudy (mathmale):

Yes. You have an equation here (right?) I'm asking you to subtract 4 from the left side and to subtract 4 from the right side. What does the whole equation look like now?

OpenStudy (mathmale):

Yes, the right side is now 13. Left side?

OpenStudy (book):

would i subtract both -3 and 2?

OpenStudy (mathmale):

Not yet. Please write |2x-3|=13. Sound correct to you?

OpenStudy (book):

yea

OpenStudy (mathmale):

Now solve this most recent equation in exactly the same way you solve the previous one. Write out 2 separate equations from |2x-3|=13.

OpenStudy (book):

um how would i do that

OpenStudy (book):

ooo ok

OpenStudy (mathmale):

Could you refer to our past discussion?

OpenStudy (book):

yaya hold up

OpenStudy (mathmale):

Write +(2x-3)=13 and -(2x-3)=13. Solve both.

OpenStudy (book):

-5 and 8

OpenStudy (mathmale):

Please check your answers. For example, let x=8 in the original equation. Is the original equation now true? Also check x=-5.

OpenStudy (book):

o im wrong?

OpenStudy (mathmale):

I certainly did not say that or mean that. I want you to get into the habit of checking your own answers whenever possible. Actually, I'm assuming you're right.

OpenStudy (book):

o mk

OpenStudy (mathmale):

What's 'mk' represent?

OpenStudy (book):

ok..

OpenStudy (mathmale):

Oh. "mk" is pronounced "ok?" ;) ;)

OpenStudy (mathmale):

Thank you so much for the medal.

OpenStudy (book):

ty for helping me

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