5·6x一9·2x3=11·6解:5.6x-27.6=11.65.6x-27.6+27.6=11.6+27.6(两边同时加上27.6) 5.6x=39.2 5.6x÷5.6=39.2÷5.6(两边同时除以5.6) x=7