5m+3n=413 m−6n=9 solve for m and n please help

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31-01-2018
Mathematics

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5m+3n=413 m−6n=9 solve for m and n please help

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anchitthawi anchitthawi · Answer 1 · 2018-02-01T06:03:56+01:00

anchitthawi anchitthawi

01-02-2018

5m+3n=413---(1)
m-6n=9----(2)

(1)*2; 10m+6n=826 -----(3)
(3)+(2); 10m+m+6n-6n=9+826
11m=935
so m=85

from (2); m-6n=9
85-6n=9
85-9=6n
76= 6n
so n= 76/6 = 38/3

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