<span>4*(x-0,5)+2*(x-0,25)+x-0,125=0
4x-2+2x-0,5+x-0,125=0
4x+2x+x=2+0,5+0,125
7x=2,625
x=0,375</span>
1. 0.525
2.0.266
3. 0.125
4. 10
5. 0.005
6. 0.040
7.
8. 0. 046
9.
Вот пожалуйста ответ на все задания.
1) 3/7 + 4/7 + 14/19 + 5/19 = 7/7 + 19/19 = 1 + 1 = 2
2) 7/16 + 9/16 + 11/42 + 17/42 = 16/16 + 28/42 = 1 + 2/3 = 1 2/3
3) 5/18 + 7/18 + 11/81 + 5/81 = 12/18 + 16/81 = 2/3 + 16/81 = 54/81 + 16/81 = 70/81