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Question

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Q.(5). 4m + 6n = 54 ; 3m + 2n = 28

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Solution

Dear student
4m+6n=54 ...13m+2n=28 ...2Multiply equation 2 by 3, we get9m+6n=84 ...3Subtracting equation 3 from 1 we get4m+6n-9m-6n=54-84-5m=-30m=6Putting m=6 in equation 2, we get36+2n=28 2n=28-182n=10n=5
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