Inequality solve (x+1)/6<x-(3x-2)/4

  • Context:
  • Thread starter Thread starter karush
  • Start date Start date
  • Tags Tags
    Inequality
Join the discussion
Registration is free. Ask a follow-up in this thread, or start your own.
2 replies · 2K views
karush
Gold Member
MHB
Messages
3,240
Reaction score
5
View attachment 9261
Ok a student sent this to me yesterday so want to answer without too many steps

I think the first thing to do is multiply every
term by 12

$2(x+1)<12x-3(3x-2)$
Expanding
$2x+2<12x-9x+6$
 

Attachments

  • Screenshot_20190908-095501_Gallery.jpg
    Screenshot_20190908-095501_Gallery.jpg
    9.1 KB · Views: 154
Last edited:
Mathematics news on Phys.org
That’s fine.
 
skeeter said:
That’s fine.
$\dfrac{x+1}{6}<x-\dfrac{3x-2}{4}$
Expanding
$2x+2<12x-9x+6$
Combine like terms
$2x+2<3x+6$
Subtract 2x from both sides
$2<x+6$
Subtract 6 from both sides
$-4<x$

Hopefully no typos

Looks like answer a.
 
Last edited: