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Translate into a variable equation AND solve: Twice the difference between four times a number and five is six. Find the number.

Guest Oct 18, 2017
 #1
avatar+86915 
+2

Let's take this in parts

 

"The difference between four times a number and 5"  = 4N - 5

 

And twice this  =  2(4N - 5)   = 6

 

So

 

2(4N - 5)  = 6     divide both sides by 2

 

4N - 5   =  3        add 5 to both sides

 

4N  =  8           divide both sides by 4

 

N  = 2

 

 

cool cool cool

CPhill  Oct 18, 2017
 #2
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+1

Thank you!!

Guest Oct 18, 2017

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