anonymous
  • anonymous
Of the four expressions presented here, which two are equivalent? Expression I: 6n + 5 Expression II: 2n + 5 + n + 3n Expression III: 5n + 5 Expression IV: 11n I and II II and III III and IV I and IV
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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anonymous
  • anonymous
Its Either B Or D. My Choice Was D But I Wanna Make Sure
anonymous
  • anonymous
@paki
anonymous
  • anonymous
@pooja195

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More answers

welshfella
  • welshfella
simplify the second one. bring like terms together 2n + 3n + n = 5 = ?
anonymous
  • anonymous
@paki
anonymous
  • anonymous
welshguy. so it is B Not D?
welshfella
  • welshfella
what is 2n + 3n + n
anonymous
  • anonymous
I DUNNO THATS WHY IM ASKING XD
anonymous
  • anonymous
5n + n?
welshfella
  • welshfella
you are getting there what is 5n + n ?
anonymous
  • anonymous
5n.
welshfella
  • welshfella
if i have 5 cats and i get another cat how many acts have i got?
welshfella
  • welshfella
* cats lol
anonymous
  • anonymous
2n + 5 + n + 3n is what it is.. not what ur putting
anonymous
  • anonymous
so if i simplifiy what i put it becomes 5n + 5 + n
welshfella
  • welshfella
suppose n stands for a cat 5 cats + 1 cat = 6 cats 5n + n = 6n
welshfella
  • welshfella
you can add all the n's together.
anonymous
  • anonymous
but it doesnt tell you n = 1.. you cant add n and assume its gonna make 5n 6n
welshfella
  • welshfella
n is the same as 1n
welshfella
  • welshfella
n + n = 2n n + 5n = 6n
welshfella
  • welshfella
1n + 5n = 6n
anonymous
  • anonymous
so then its A?
welshfella
  • welshfella
yes
anonymous
  • anonymous
how u said its 6n alone not 6n + 5n
anonymous
  • anonymous
Expression I: 6n + 5
anonymous
  • anonymous
A = expression 1 and expression 2.
welshfella
  • welshfella
you can only add LIKE terms n and 2n and 3n all have n in them they are like terms 5 is different
welshfella
  • welshfella
yes thats right
anonymous
  • anonymous
yeah. 5 is not a like term. so where did the 5 come from.
welshfella
  • welshfella
It didn't come from anywhere its just there
anonymous
  • anonymous
how is it there. how did it get there.
anonymous
  • anonymous
you said it was 6n not 6n + 5
anonymous
  • anonymous
so how did the 5 get there...
welshfella
  • welshfella
It might help to think of n as a box of apples and the 5 as 5 apples so 2n + 5 is |dw:1440789153532:dw|
welshfella
  • welshfella
2 boxes of apples + 5 apples 2n + 5
anonymous
  • anonymous
your not getting it.. an example isnt gonna help. where did the 5 come from. your not explaining hat.
anonymous
  • anonymous
that* not hat.
welshfella
  • welshfella
the 5 are 5 apples
anonymous
  • anonymous
... thats not an answer.
anonymous
  • anonymous
where.
anonymous
  • anonymous
did.
anonymous
  • anonymous
the 5.
anonymous
  • anonymous
come from
anonymous
  • anonymous
saying the 5 apples isnt really telling me.
welshfella
  • welshfella
I'm afraid its you who's not getting it my friend
anonymous
  • anonymous
how so. care to explain how im not getting it?
welshfella
  • welshfella
would you prefer chocolates, or coconuts - it could be 5 anything? lets put it this way . Most people understand this argument. I think you are kidding me on.
anonymous
  • anonymous
Expression I: 6n + 5 Expression II: 2n + 5 + n + 3n
anonymous
  • anonymous
i read the wrong one forgive me xD. i get it now 2n + 3n = 5n. 5n + n = 6n. then the 6n + 5 is whats left over.
welshfella
  • welshfella
simplify I gives II
welshfella
  • welshfella
ok
anonymous
  • anonymous
i know. like i said after simplifying Expression I: 6n + 5 Expression II: 2n + 5 + n + 3n 2n + 3n + 5n + n + 6n.
anonymous
  • anonymous
then it leave 6n + 5
anonymous
  • anonymous
therefore expression 2 simplified = expression 1
welshfella
  • welshfella
this analogy with apples , cats or whatever may be a bit childish but it very often is the key to understanding for most people. yes
anonymous
  • anonymous
\[3 n+2 n+n+5=6 n+5 \]

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