Пошаговое объяснение:
(18-12)÷(5х-15)=36
6 : (5x - 15) = 36
5x - 15 = 6 : 36
5x - 15 = 1/6
5x = 1/6 + 15
5x = 15 1/6
x = 15 1/6 : 5
x = 91/6 * 1/5
x = 91/30
x = 3 1/30
Пошаговое объяснение:
(18-12)÷(5х-15)=36
6 : (5x - 15) = 36
5x - 15 = 6 : 36
5x - 15 = 1/6
5x = 1/6 + 15
5x = 15 1/6
x = 15 1/6 : 5
x = 91/6 * 1/5
x = 91/30
x = 3 1/30