Решите уравнение: 25/29х = 5/18, 13/17х =39, 4х =5/7

Question

Решите уравнение: 25/29х = 5/18, 13/17х =39, 4х =5/7

Answer 1

1) 5/29х=5/18
х=5/18:25/29=5*29/18*25=29/18*5=29/90
2)13/17х=39
х=39:13/17=39*17/13=3*17=51
3)4х=5/7
х=5/7:4=5/7*4=5/28