1)0.6m-1.4=(3.5m+1.7)-(2.7m-3.4) 2)(5,3а-0,8)-(1,6-4,7а)=2а-(а-0,3)
3)0,15(х-4)=9,9-0,3(х-1)
4)1,6(а-4)-0,6=3(0,4а-7)
Напишите пожалуйста с подробным решением
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