Hi All, could someone help me with this one: 6-3x =5x-10.+18. My instructor gave the answer as being x=6 and I didn't get it all copied down in time today. I cannot figure out how he got that. You group like terms right? Anyway, I'd appreciate any help I might get on this. Denise

Question

Hi All, could someone help me with this one: 6-3x =5x-10.+18.  My instructor gave the answer as being x=6 and I didn't get it all copied down in time today.  I cannot figure out how he got that. You group like terms right?  Anyway, I'd appreciate any help I might get on this. Denise

anonymous · Answer

Hi Luis, sorry I was doing something.  How did you get that? Could you show me?

anonymous · Answer

I love how you can use that cool whiteboard thingy??  How do you do that, scanner?

anonymous · Answer

ohh cool!! Thank you for the info luis:)

radar · Answer

6-3x=5x-10+18
6-3x=5x+8
-8x=8-6
-8x=2
x=2/-8=- 1/4

anonymous · Answer

ty Radar, good to see you. Let me take a look at it and try to work it as well. Denise;)

radar · Answer

I don't see how your instructor got 6??

anonymous · Answer

Oh it's 10x, sorry, typed it wrong.

radar · Answer

Is it "6-3x=5x-10x+18"   ?

anonymous · Answer

6-3x=5x-10x+18

anonymous · Answer

Yes, so sorry radar:(  I'm still looking for that lost marble, LOL!

radar · Answer

Combine similar terms getting:
6-3x=-5x+18        Now add 5x to both sides getting:
6+2x=18   Now sub t ract 6 from both sides getting
2x=12
x=6   Your instrucgtor was correct

anonymous · Answer

I'm sorry to you too Luis, I typed a period instead of an x after the 10 in the first post:(

anonymous · Answer

Ok, let me work with that Radar, thank you so much, both of you guys!! Denise

radar · Answer

For some reason I have lost my delete function key, going to reboot, cul

anonymous · Answer

Ok. I don't see what happened with the -10x?

anonymous · Answer

Oh wait, I see, I got it radar.  I wasn't lookiing at the combine terms first.

radar · Answer

Doing a test to determine if my delete key is working.
Yea! It is now working.

radar · Answer

Did you follow with understanding?

anonymous · Answer

Yes, finally, LOL, it's been awhile since I had to work one like that, now it makes sense, thank you both again:) I can go ahead and do a few more problems now like this one:)  See you later and have a nice evening, Denise

anonymous · Answer

I was trying to combine like terms with terms on the other side of the equal sign

radar · Answer

Great, good luck in your studies.

anonymous · Answer

thank you, I surely need it;)

radar · Answer

Be careful when doing that, it is easy to get the signs twisted.

anonymous · Answer

that is my biggest problem I think, signs and keeping the rules straight in my head, thank you again.