Mathematics
4 Online
OpenStudy (anonymous):
|2n - 3| = 5 can u explain how to solve and help me solve? I dont really get what the lines are for either
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OpenStudy (nincompoop):
it is a piecewise-defined where n ≤ 0 and n > 0
OpenStudy (anonymous):
so how do u solve
OpenStudy (nincompoop):
solve two parts
1*(2n - 3) = 5
-1*(2n - 3) = 5
OpenStudy (anonymous):
i dont get it
OpenStudy (nincompoop):
can you solve those two I've written out?
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OpenStudy (anonymous):
no... if i cant solve the problem i began with than i cant solve the one u wrote... sorry math is my worst subject
OpenStudy (anonymous):
im so confused
OpenStudy (nincompoop):
you don't know distributive property?
OpenStudy (anonymous):
i do
OpenStudy (nincompoop):
THEN SOLVE those two I've given you
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OpenStudy (anonymous):
its the same but negative
OpenStudy (nincompoop):
I want to see you solve it
OpenStudy (nincompoop):
when someone is being patient teaching you, pay attention and heed to request
OpenStudy (anonymous):
i dont get it!
OpenStudy (nincompoop):
then you don't know distributive property
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OpenStudy (anonymous):
i do tho
OpenStudy (nincompoop):
then why can't you solve what I wrote?
OpenStudy (anonymous):
because i dont get it... how hard is it to understand what im saying
OpenStudy (nincompoop):
solve two parts
1*(2n - 3) = 5
-1*(2n - 3) = 5
if you don't solve those two, I am done with you
OpenStudy (anonymous):
math is my worst subject
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OpenStudy (anonymous):
i dont get how to solve it
OpenStudy (anonymous):
2n-3=5
OpenStudy (nincompoop):
so you DO NOT KNOW DISTRIBUTIVE PROPERTY
OpenStudy (anonymous):
-2n- -3= 5
OpenStudy (anonymous):
there i did it but its wrong isnt it
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OpenStudy (nincompoop):
did you solve for n? SOLVE FOR n in each case
OpenStudy (nincompoop):
yeah it is wrong because when you are multiplying two negatives, you get positive
OpenStudy (anonymous):
how is it wrong i dont have any negative numbers only the 1 that that u gave me
OpenStudy (nincompoop):
-1*(2n - 3) = 5
THERE
OpenStudy (anonymous):
-2n - -3 = 5
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OpenStudy (nincompoop):
what?
OpenStudy (nincompoop):
what is -1 * -3?
OpenStudy (anonymous):
its not negative three its minus 3
OpenStudy (nincompoop):
minus 3 is THE SAME AS NEGATIVE 3
OpenStudy (anonymous):
oh okay so than -2n-3=5
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OpenStudy (anonymous):
-2n=8
OpenStudy (anonymous):
n is -4
OpenStudy (nincompoop):
?
OpenStudy (anonymous):
am i rright
OpenStudy (nincompoop):
learn arithmetic
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OpenStudy (anonymous):
these are the possible answers {1, 4}
{-1, 4}
{1, -4}
{-1, 1}
OpenStudy (nincompoop):
I am done with you
OpenStudy (anonymous):
wait!
OpenStudy (anonymous):
why cant u tell me if i am right or wrong
OpenStudy (nincompoop):
I already told you that you were wrong
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OpenStudy (anonymous):
well i gave u all the options for the answers... which one is it
OpenStudy (anonymous):
i thought the 3rd
OpenStudy (anonymous):
and plus i dont need arithmetic this is 4th grade ap math
OpenStudy (nincompoop):
I think you need to hone skill in arithmetic, buddy