Question about Texas Instruments TI-89 Calculator

I am trying to figure out how to use the absolute value on my TI-89 Titanium. Example: |4x-5|=|3x-23| How do I put this in my calculator to get the answer. THANK YOU!

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For resolving this equation type solve(abs(4x-5)=abs(3x-23),x). See captured image

Posted on Aug 19, 2016

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To input this into a TI-89 you would type " abs(4x-5) = abs(3x-23) ". abs() is the absolute value
on this calculator. To solve this equation for x input " solve(abs(4x - 5) = abs(3x - 23) ,x) "

Posted on Apr 04, 2011

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Posted on Jan 02, 2017

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You need to re-install your calculator's OS. After this process your Ti 89 Titanium will operate properly. If you do the process below make sure you use new batteries.

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Remove one of the AAA batteries. Press and hold the [APPS] key, and while holding the [APPS] key, replace the battery and turn the unit on. On the older TI-89 you should see "Press I to install code...", and you should press the [9] key to continue. But, on your Ti 89 titanium it should say, "Waiting to receive..." or, "Waiting to received OS...". Now you need to follow the instructions in the paragraph below to restore the calculator's operating system.

Next, drag the Ti 89 Titanium OS 3.10v. that you copied earlier to "My Documents \ My TI Data \ Downloads" out of that folder and, drop it in the "Ti Connect" icon on the desktop. Next the OS Downloader Warning will pop-up. Click, "OK" to continue and, the new OS will begin to install. The Ti Device window should pop up and, click on to the port where your Ti 89 Titanium is located, USB1 cable or Direct Black COM1. Just click, "Select" and, the OS will continue to download. Upon completion the newest Ti 89 Titanium OS 3.01v. will be installed.

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