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Can someone please help me on one of my math questions?

I need to show ALL my work for full answers, but I don't understand how to do this.

 

Simplified Expression for the Perimeter of the Triangle

Perimter of Triangle = 4n - 16 + 4n + 3 + 5n - 8

 

Thank you soo much,

Lily

 Oct 18, 2015

Best Answer 

 #1
avatar+129899 
+10

4n - 16 + 4n + 3 + 5n - 8   just combine lke terms....so we have

 

[4n +4n + 5n] + [ -16 + 3 - 8]  =

 

[13n ] + [ - 21 ] =

 

13n - 21

 

 

cool cool cool

 Oct 18, 2015
 #1
avatar+129899 
+10
Best Answer

4n - 16 + 4n + 3 + 5n - 8   just combine lke terms....so we have

 

[4n +4n + 5n] + [ -16 + 3 - 8]  =

 

[13n ] + [ - 21 ] =

 

13n - 21

 

 

cool cool cool

CPhill Oct 18, 2015

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