214. Решите уравнения:
8х +5, 2
11
1)
2,4 2
5х + 3
9
13,5
3)
x x -0,2 4,2
0,8
1,2
3х + 0,8
4,8
9,6
8
4
6)
28
9x +7-
-
7x - 2
10,4
=
20
2)
4)
3,6
1,6
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