Всем привет! Помогите решить уравнение за 40 баллов. 1) 5/9х = 1*1/3 , 2) 2* 1/14 - 1* 2/3х = 1* 5/21 3) 2/5m + 3/10m - 2/15m = 1/6 . Заранее благодарен
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15/9x=1 1/3
x=1 1/3:5/9=4/3*9/5
x=2,4
2
2 1/14-1 2/3x=1 5/21
1 2/3x=2 1/14-1 5/21=2 3/42-1 10/42=1 45/42-1 10/42=35/42=5/6
x=5/6:1 2/3=5/6*3/5
x=0,5
3
2/5m+3/10m-2/15m=1/6
24/60m+18/60m-8/60m=10/60
34/60m=10/60
m=10/60:34/60=10/60*60/34
m=5/17