Question

(12,5–х):5=(3,6+х):6

Answer 1

(12,5–х):5=(3,6+х):6

(12,5-х)*6=(3,6+х)*5

75-6х=18+5х

11х=57

х=5,(18) в периоде

Answer 2

(12,5):5=(3,6+х):6 (12,5-х)*=(3,6+)*5 75-6х=18+5х 11х=57 Х=5,18