△+△+△一口一口=8,2。3*△-2*口＝8.2①口+口十口一△一△=1,7。3*口-2*△＝1.7②①*2+②*3得6*△-4*口+9*口-6*△＝16.4+5.15*口＝21.5口＝4.3口＝4.3代入①得3*△-2*4.3＝8.23*△＝8.2+2*4.3＝8.2+8.6＝16.8△＝16.8÷3＝5.6
△＝5.6 ○＝4.3
