Найдите корень уравнения x/3+х/12=15/4 7х/9-3х/4=5/12 1-8х/15=4х/9
1) х/3 + х/12 = 15/4 4х + х = 45 5х = 45 х = 45/5 х = 9 2) 7х/9 - 3х/4 = 5/12 28х - 27х = 15 х = 15 3) 1 - 8х/15 = 4х/9 45 - 24х = 20х 45 = 24х + 20х 44х = 45 х = 45/44