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+5
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avatar+143 

I need help please Imma bout to fail this class and my teachers directions arent helping.

absolute value -23+8x -12>+37

absloute value 61+20x +32>51

absolute value 4a+3 +31=50

Knk98  Aug 18, 2015

Best Answer 

 #7
avatar+143 
+10

ok so the answer is x>9 or x<-13/4

Knk98  Aug 19, 2015
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8+0 Answers

 #1
avatar+17711 
+10

I'm not sure where the absolute value bars belong ...

If the first problem is                       |-23 + 8x| - 12  >  37

then, first add 12 to both sides to get:  |-23 + 8x|  >  49

Since it is a greater than ('>') problem, split the problem into two parts:

either  + (-23 + 8x)  >  49        or       - (-23 + 8x)  >  49

Solve each one separately:

           + (-23 + 8x)  >  49                   - (-23 + 8x)  >  49

                 -23 + 8x  >  49                           23 - 8x  >  49

                          8x  >  72                                  -8x  >  26

                            x  >  9                                       x  <  -13/4

Does this help?  Any questions?

geno3141  Aug 18, 2015
 #2
avatar+1311 
+10

 

Here how to do the first one.

-23+8x-12>+37

make it simple

8x-35>37

add 35 to both sides

8x>72

Then divide bothe sides by 8

x > 9

Dragonlance  Aug 18, 2015
 #3
avatar+1311 
+5

Sorry Geno I not see you untill now.

 

Oh I not think about the absolute part for this either.

Dragonlance  Aug 18, 2015
 #4
avatar+143 
+5

geno3141 so would that be an "AND" or "OR" statement

Knk98  Aug 18, 2015
 #5
avatar+1311 
+5

I guess it is both because the first answer and the second answer is true, but only one or the other is true at the same time.

IDK one of the mods can answer better.

Dragonlance  Aug 18, 2015
 #6
avatar+91797 
+10

Geno's answer is an OR

either of those statements will make the inequality true :)

Melody  Aug 19, 2015
 #7
avatar+143 
+10
Best Answer

ok so the answer is x>9 or x<-13/4

Knk98  Aug 19, 2015
 #8
avatar+91797 
0

Yes that is correct :)

Melody  Aug 19, 2015

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