Найдите корень уравнения 1) 6/5x=3/5 2)4/7x=1 3)3/4x=12 4)x: 7/15=15/28 5)5 1/4: x=7/8 6)3 3/7: x=1 5/7

1) 6/5x=3/5
6/5x : 3/5 = 3/5 : 3/5
6/5x * 5/3 = 1
6/3x = 1
2x = 1 
x = 0,5
2)4/7x=1
4x = 7
x = 7/4
x = 1,75
3)3/4x=12
3x = 48
x = 16
4)x:7/15=15/28
x * 15/7 = 15/28
60x = 15
x = 0,25
5)5 1/4:x=7/8
5 2/8 : x = 7/8
7/x = 7/8
56 = 7x
x = 8
6)3 3/7:x=1 5/7
6/x = 6
6 = 6x
x = 1