Math, asked by Ravneet6431, 11 months ago

solve by elimination method


7n-2m=5
8n+7m=15​

Answers

Answered by himanshusangshe
3

\huge\mathfrak\red{Heya Mate}

\mathcal\blue\boxed{ANSWER}

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7n - 2 m= 5 -  -  -  - 1 \\ 8 n+ 7m = 15 -  -  - 2 \\  \\ multiplying \: 1 \: by \: 7 \: and \: 2 \: by \: 2 \\  \\ 49n - 14m = 35 \\ 16n + 14 m= 30 \\  \\ adding \: them \: we \: get \:  \\  \\ 65n = 65 \\ therefore \\  \\ n = 1 \\  \\  \\  \\ substituting \: n = 1 \: in \: equation \: 1 \\  \\ 7n - 2m = 5 \\ 7 \times 1 - 2m = 5 \\  - 2m =  - 2 \\  \\ therefore \\ m = 1 \\  \\  \\  m= 1 \:  and \: n= 1

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<marquee>HOPE IT HELPS YOU


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