Решите уравнение, используя правило нахождения неизвестных компонентов: 1)(0,9x+4,55)*0,3=1,5;
2)60,8:(5,3x-2,15)=5;
3)(0,75x+6,8)*0,1=0,98;
4)(10-2,1x):1,37=5.
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