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 January 8th, 2018, 02:51 PM #1 Newbie     Joined: Oct 2017 From: lancaster CA Posts: 12 Thanks: 0 Math Focus: highschool and Jr high simplify the expression 5+3.2n-6-4.8n
 January 8th, 2018, 02:57 PM #2 Newbie   Joined: Jan 2018 From: Tunis, Tunisia Posts: 10 Thanks: 4 Math Focus: Analysis Hi ! Did you try to answer it ? What difficulty did you face ? Tell us so we can help Thanks from Help123
 January 8th, 2018, 03:03 PM #3 Global Moderator     Joined: Oct 2008 From: London, Ontario, Canada - The Forest City Posts: 7,958 Thanks: 1146 Math Focus: Elementary mathematics and beyond What progress can you make trying to solve this on your own? Please do not post multiple copies of the same topic. Thanks from Ould Youbba
 January 8th, 2018, 03:03 PM #4 Newbie     Joined: Oct 2017 From: lancaster CA Posts: 12 Thanks: 0 Math Focus: highschool and Jr high Can you please tell me how to solve it? I tried to solve it, but I don't know the process; can you help me, please, and say how to do it? Last edited by skipjack; January 8th, 2018 at 03:52 PM.
 January 8th, 2018, 03:06 PM #5 Newbie     Joined: Oct 2017 From: lancaster CA Posts: 12 Thanks: 0 Math Focus: highschool and Jr high Sorry Sorry, I didn't know... I am new here. Last edited by skipjack; January 8th, 2018 at 03:53 PM.
January 8th, 2018, 03:09 PM   #6
Global Moderator

Joined: Oct 2008
From: London, Ontario, Canada - The Forest City

Posts: 7,958
Thanks: 1146

Math Focus: Elementary mathematics and beyond
Quote:
 Originally Posted by Help123 ...I tried to solve it...
Please post your attempt and then we can help. It really doesn't take that much effort to do that.

Last edited by skipjack; January 8th, 2018 at 03:53 PM.

 January 8th, 2018, 03:13 PM #7 Newbie   Joined: Jan 2018 From: Tunis, Tunisia Posts: 10 Thanks: 4 Math Focus: Analysis Hi ! You simply add the terms that contain the same variable together and the terms that have no variables together. For example if you have $\displaystyle A=3+5x-4+2.1x$ then you add the terms $\displaystyle 5x$ and $\displaystyle 2.1x$ together because they contain the same variable $\displaystyle x$ and you add the terms $\displaystyle 3$ and $\displaystyle -4$ In other way : $\displaystyle A=\left(5x+2.1x\right)+\left(3-4\right)=(5+2.1)x+(-1)=7.1x-1$ Is it clear for you ? In your question the variable is $\displaystyle n$. So try to do the same ! Thanks from greg1313

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