Question

5m +4n = 14,
7m-n=13;​

Answer 1

Ответ:

5*2+4*1=14

7*2-1=13

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m=2,n=1

Answer 2

Ответ:

7m - n = 13

4(7m - n) = 4(13)

28m - 4n = 52

5m + 4n = 14

28m - 4n = 52

33m = 66

m = 2

5m + 4n = 14

5(2) + 4n = 14

10 + 4n = 14

4n = 4

n = 1

Объяснение:

m = 2, n = 1.