a) x = 0.2 б) x = 14 в) x = 1/9 г) x = 1/8
x * 2 = 2/5
x = 2/5:2
x = 2/10
x = 0.2
1/7*x = 2
1/7:2*x = 1
1/14 = 1/x
14 = x
1/3:x = 3
1/3:3:x = 1
1/9:x = 1
1/9 = x
x:1/2 = 4
x:1/2:4 = 1
x:1/8 = 1
x = 1/8
а)х*2=2/5
х=2/5:2
х=2/5*1/2
х=2/10=1/5
б)1/7*х=2
х=2:1/7
х=2*7
х=14
в)1/3:х=3
х=1/3:3
х=3*3
х=9
г)х:1/2=4
х=4*1/2
х=4/2
х=2
Пошаговое объяснение:
a) x = 0.2 б) x = 14 в) x = 1/9 г) x = 1/8
x * 2 = 2/5
x = 2/5:2
x = 2/10
x = 0.2
1/7*x = 2
1/7:2*x = 1
1/14 = 1/x
14 = x
1/3:x = 3
1/3:3:x = 1
1/9:x = 1
1/9 = x
x:1/2 = 4
x:1/2:4 = 1
x:1/8 = 1
x = 1/8
а)х*2=2/5
х=2/5:2
х=2/5*1/2
х=2/10=1/5
б)1/7*х=2
х=2:1/7
х=2*7
х=14
в)1/3:х=3
х=1/3:3
х=3*3
х=9
г)х:1/2=4
х=4*1/2
х=4/2
х=2
Пошаговое объяснение: