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OpenStudy (imnotgoodatmath):
Solve the equation 5(2 - 3n) = -8n - 4 for n
–1
0
1
2
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OpenStudy (anonymous):
first you would distribute the 5 so 5*2 and 5*-3n?
OpenStudy (anonymous):
@ImNotGoodAtMath
OpenStudy (imnotgoodatmath):
@KlOwNlOvE oh sorry what does distribute mean?
OpenStudy (anonymous):
distribute is when you have a number outside of parenthesis so in this case it's a 5 you multiply everything in parenthesis by 5
OpenStudy (imnotgoodatmath):
so like 2 x 5? and 3n x 5?
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OpenStudy (anonymous):
yes but the 3 is negative so the answer to 3n x 5 will be negative
OpenStudy (anonymous):
(+-)=- (--)=+ (++)=+
positive multiplied by a negative will stay negative but 2 negatives make a positive
OpenStudy (imnotgoodatmath):
just spit balling here so it would be -1?
OpenStudy (anonymous):
10-15n=-8n-4
-15n=-8n-14
-7n=-14
how do i get n by itself
OpenStudy (imnotgoodatmath):
You muliply or divide?
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OpenStudy (imnotgoodatmath):
@KlOwNlOvE
OpenStudy (anonymous):
because n is being multiplied to get it over there you divide so n=?
whats negative 14 divivded by negative 7
OpenStudy (imnotgoodatmath):
my caculator is being stupid hold on
OpenStudy (imnotgoodatmath):
2?
OpenStudy (anonymous):
yes do you understand how i got to that?
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OpenStudy (imnotgoodatmath):
yesh
OpenStudy (anonymous):
it isn't that hard once you understand how to do it :)
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