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M and N are negative

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M and N are negative

by sanju09 » Sat Jun 19, 2010 3:03 am
If M and N are negative integers and -3 M + 4 N = 10, which of the following could be the value of N?
(A) -2
(B) -4
(C) -6
(D) -7
(E) -9
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by amising6 » Sat Jun 19, 2010 3:05 am
sanju09 wrote:If M and N are negative integers and -3 M + 4 N = 10, which of the following could be the value of N?
(A) -2
(B) -4
(C) -6
(D) -7
(E) -9
a)-2
m=-6
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by selango » Sat Jun 19, 2010 9:23 am
-3M+4N=10

4N-10=3M-->M=2(2N-5)/3

2N-5 must be multiple of 3.

-2 only satisfy.
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