1)a)0,3896÷0.08=4.87 b)27223.8÷6.8=4003,5 210470.2÷7,004=30050 47.4302÷0,001=47430.2 2,a) 190.62÷(8,127÷(4.5+2.11))=70.6 23.45515·(4.5x+2.11)=70.6 105.548173x+49.490365=70.6 105.548173x=70.6-49.490365 105.548173x=21.109635 x=21.109635÷ 105.548173 x=0.2 2.b) 0.83x+0.025x-0.0042=0.03 0.855x-0.0042=0.03 0.855x=0.03+0.0042 0.855x=0.0342 x=0.0342÷0.855 x=0.04