Question

0,6*(1,3+5/9x)+7/9x=1,48​

Answer 1

Пошаговое объяснение:

0,6(1,3 + 5/9х) + 7/9х = 1,48

6/10(13/10 + 5/9х) + 7/9х = 148/100

78/100 + 30/90х + 7/9х = 148/100

39/50 + 3/9х + 7/9х = 74/50

3/9х + 7/9х = 74/50 - 39/50

10/9х = 35/50

х = 35/50 : 10/9

х =35/50 * 9/10

х = 7/50 * 9/2

х = 63/100 или 0,63