| 1570. Розв’яжи рівняння:
1) 6 (x-1,82) = 25,2;
2) 45:(2,8 + x) = 12;
3) 6x + 9x - 5,8 = 3,8;
4) 7x - 2x - 3x + 2,73 = 4,49.
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