Решите уравнение 22×(17/26х-3/4)=5 1/13 ответ д/б 1,5

Question

Решите уравнение 22×(17/26х-3/4)=5 1/13 ответ д/б 1,5

Answer 1

22 * (17/26х - 3/4) = 5 1/13
17/26х - 3/4 = 5 1/13 : 22 = 66/13 * 1/22 = (3*1)/(13*1) = 3/13
17/26х = 3/13 + 3/4 = 12/52 + 39/52 = 51/52
х = 51/52 : 17/26 = 51/52 * 26/17 = (3*1)/(2*1) = 3/2
х = 1 1/2 = 1,5

Пояснения:
5 1/13 = (5*13+1)/13 = 66/13
3/2 = 1 1/2 = 1,5