# Math

M partly varies as N and is partly constant. When M=2,N=3,when M=4,N=2.find M when N=1

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1. M = kN + c
when M=2, N=3
---> 2 = 3k + c
when M=4, N=2
---> 4 = 2k + c
subtract the two equations:
-2 = k
sub into one of them to find c,
rewrite M = kn + c, replace N with 1 to find M

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