Решите уравнения 1/3x+1/4x+1/5x=1 19/75

Question

Решите уравнения 1/3x+1/4x+1/5x=1 19/75

Answer 1

1/3x+1/4x+1/5x=1 19/75

20+15+12/60х=1 19/75

47/60х=1 19/75

х=1 19/75 : 47/60

х=94/75*60/47

х=8/5

х=1 3/5