1) 4/7х = 1
7х = 4
х = 4/7
2) 4х = 12
х = 12:4
x = 3
3) x : 7/15 = 15/28
x = 15/28 * 7/15
x = 1/4
4/7х = 1
х= 1:4/7 = (1*7/4)
х = 7/4
3/4х =12
х= 12:3/4 = (12* 4/3)
х= 16
х:7/15 =15/28
х= 15/28 * 7/15
х= 1/4
1) 4/7х = 1
7х = 4
х = 4/7
2) 4х = 12
х = 12:4
x = 3
3) x : 7/15 = 15/28
x = 15/28 * 7/15
x = 1/4
4/7х = 1
х= 1:4/7 = (1*7/4)
х = 7/4
3/4х =12
х= 12:3/4 = (12* 4/3)
х= 16
х:7/15 =15/28
х= 15/28 * 7/15
х= 1/4