Частина 1. Номер 636
Розв’яжи рівняння
а) x/3 = 2/6
x/3 = 1/3
x = 1
в) 12/x = 1/2
12/x = 12/24
x = 24
ґ) (x – 2)/12 = 4/3
(x – 2)/12 = 16/12
x – 2 = 16
x = 18
б) 5/7 = x/14
10/14 = x/14
x = 10
г) (x + 1)/2 = 3/6
(x + 1)/2 = 1/2
x + 1 = 1
x = 0
д) (x + 2)/6 = 15/18
(x + 2)/6 = 5/6
x + 2 = 5
x = 3