countonme123
x+{y-3-4x+2[3x-(-y-1)+2y]-3x} = ?
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countonme123
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i am having a little trouble solving this one
TuringTest
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one thing is that it's a lot easier on the eyes if you don't use caps
countonme123
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wow can you explain how to do that
countonme123
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x+{y-3-4x+2[3x-(-y-1)+2y]-3x} = ?
TuringTest
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I edited your post for you :)
anyway, we work here from the inside out
so what is the first (innermost) operation?
countonme123
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i saw that
countonme123
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(-y-1)
TuringTest
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right, and there's not much we can do with that...
so on to the next step
we now look at it as\[3x-(-y-1)+2y\]do you know how to simplify this?
countonme123
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i believe it is 3x+y+1+2y
then
3x+2y+1
TuringTest
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yep :)
countonme123
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i meant 3y
TuringTest
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ph, so did I lol
TuringTest
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so what is the next step outside of that?
countonme123
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3x+3y+1
TuringTest
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x+{y-3-4x+2[3x-(-y-1)+2y]-3x}
and we got that now to be
x+{y-3-4x+2[3x+3y+1]-3x}
so what is the innermost step we should do
(careful on this one)
countonme123
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{y-3-4x+2[3x+3y+1]-3x}
countonme123
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right?
TuringTest
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almost.... and that can work, but we can make it even simpler
the first thing to be done (the innermost operation) is to distribute the 2:
2[3x+3y+1]
countonme123
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yah i know thats what i meant
TuringTest
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good
so simplify that and tell me what you get
countonme123
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ok we will see?
countonme123
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2[3x+3y+1]
which is
6x +6y +2
TuringTest
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good, so now substitute that into the next outer expression
(the one you wrote before)
countonme123
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ok
countonme123
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x+y-3-4x+6x +6y +2-3x
TuringTest
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great, and now we simplify that....
countonme123
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ok
countonme123
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+7y - 1?
countonme123
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am i right?
TuringTest
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no be more careful with your like terms
what are just all the x's added up?
TuringTest
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oh wait I'm sorry I mistyped my own paper
(mulitptasking)
countonme123
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:( my book says i am right
TuringTest
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oh I see you took the last step already which is to add the final outer x
well good job, yes, that is the final answer
countonme123
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ok well can we try one more to make sure i learned everything well. if not thats fine you earned your medal?
TuringTest
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I'm never in it for the medals :)
but you're still supposed to post separate each Q as per the code of conduct
In this case we can do one more quickly here
as I said, I'm multitasking
countonme123
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ok lol i guess i wouldnt be in the medals either if i had your score
countonme123
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ok next one
TuringTest
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go ahead
countonme123
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6+{-a-3[b+6(a-b)+4a]-2b=?
TuringTest
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where to the brackets close {} ?
(you forgot the right one)
TuringTest
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where do*....
countonme123
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oh my bad after 2b
countonme123
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6+{-a-3[b+6(a-b)+4a]-2b}=?
TuringTest
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so what is the first innermost operation?
countonme123
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a-b
TuringTest
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right, but we can't simplify that, so what's the next outer operation
(again, like last time, be careful here)
countonme123
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6+{-a-3[b+6(a-b)+4a]-2b}=?
then
[b+6a-6b+4a]
TuringTest
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yes
TuringTest
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continue
countonme123
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ok so now
6+{-a-3[b+6a-6b+4a]-2b}=?
then
[10a-5b]
then
-3[10a-5b]=
-30a+15b
TuringTest
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so far so good
countonme123
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so now we have
6+{-31a+17b}=?
solve it now
6-31a+17b
fix it up a bit...
-31a+17b+6
am I right ,am I ,am I?
countonme123
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wait
countonme123
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6+{-31a+13b}=?
solve it now
6-31a+13b
fix it up a bit...
-31a+13b+6
am I right ,am I ,am I?
countonme123
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check that out
TuringTest
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yep, that's right :)
countonme123
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alright thank you very much for your time