Предмет: Математика, автор: irochka320969

7/12 n + 2/3 m -1/4 m=7
Чему равен m и n?

Ответы

Автор ответа: Meowwwwwwwwwwwwwwwww
0
frac{7}{12} n+ frac{2}{3} m- frac{1}{4} m=7
frac{7}{12} n+ frac{5}{12}m=7
7n+5m=7*12=84
7n=84-5m
n= frac{84-5m}{7}
5m=84-7n
m= frac{84-7n}{5}
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