AlifAqim AlifAqim

16-04-2020
Mathematics

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(b) 3m - 2n=19
5m + 7n=11

Respuesta :

nktselepov nktselepov

16-04-2020

3m-2n=19

5m+7n=11

21m-14n=133

10m+14n=22

Now add equations

31m=155

m=5

Now let's find n

3×5-2n=19

-2n=4

n=-2

Answer: (5; -2)

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