Решите уравнение: 4(n+5/12)=1 целая 1/6 (6n-1 целая 1/7)
4(n+5/12)=1 1/6(6n-1 1/7) 4(n+5/12)=7/6(6n-8/7) 4n+20/12=7n-8/6 4n+5/3=7n-4/3 4n-7n=-4/3-5/3 -3n=-9/3 -3n=-3 n=-3:(-3) n=1