anonymous
  • anonymous
how do i do an equation like this [2x-3]<7 ?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
katieb
  • katieb
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anonymous
  • anonymous
You solve it like you would a normal equation, the only difference is when you try to divide to get x by itself. If you divide by a negative number you flip the "<" to a ">"
anonymous
  • anonymous
ok can you be more specific?
anonymous
  • anonymous
\[2x-3<7\] \[2x<10\] \[x = \frac{ 10 }{ 2 }\] \[x = 5\]

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More answers

anonymous
  • anonymous
Those last 2 "=" should be "<", sorry
anonymous
  • anonymous
To what I said earlier, if it was: -2x < 10 In order to solve for x you would have to divide by 'negative' 2. Since you divide by a negative you just flip the sign to a >
anonymous
  • anonymous
Make sense?
anonymous
  • anonymous
yeah i think im getting it
anonymous
  • anonymous
Good. Only way to get good at math is practice
Hero
  • Hero
I think you meant this: |2x-3|< 7
Hero
  • Hero
@Dragonjuice97
anonymous
  • anonymous
yeah
anonymous
  • anonymous
Oh it's an absolute value? Ok it's going to be a little different
anonymous
  • anonymous
Ok, first you have to get the absolute value by it self, in this chance it already is. Now, you need to have 2 equations. One is set equal to 7, and the other equal to -7 so, \[2x-3 < -7\] and \[2x-3<7\]
anonymous
  • anonymous
Then you just solve both of them like I did earlier. You'll get 2 values, one from each equation. Make sense?
anonymous
  • anonymous
yeah
anonymous
  • anonymous
First you add 3 to both sides so that you get : 2x = 10. Now divide both sides by 2 and what do you get?
anonymous
  • anonymous
What answers did you get?
anonymous
  • anonymous
The answer is 5.
anonymous
  • anonymous
There's 2 answers
anonymous
  • anonymous
oh

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