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# Can anyone help me?

0
476
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Q + |16.4| = 9.6

Aug 13, 2015

#3
+95884
+5

Sorry, Anonymous.....but Q can't possibly be "26"

This would imply that :

26 + l 16.4 l  = 9.6      which definitely isn't true......adding an absolute value to 26 has to result, at the very least, in a value of 26....and this cannot equal 9.6  !!!!!

Aug 13, 2015

#1
+95884
+5

Q + |16.4| = 9.6     notice that the absolute value of a positive number is just the number itself.....so we have

Q + 16.4 = 9.6    subtract 16.4 from both sides

Q =  - 6.8

Aug 13, 2015
#2
0

16.4 can be +ve or -ve

if +ve

Q+16.4= 9.6

Q= 9.6-16.4

Q= -6.8

if -ve

Q-16.4= 9.6

Q= 9.6+ 16.4

Q= 26

So the solution set is Q = {26, -6.8}

Aug 13, 2015
#3
+95884
+5

Sorry, Anonymous.....but Q can't possibly be "26"

This would imply that :

26 + l 16.4 l  = 9.6      which definitely isn't true......adding an absolute value to 26 has to result, at the very least, in a value of 26....and this cannot equal 9.6  !!!!!

CPhill Aug 13, 2015