△+△+△一口一口=8,2。口+口十口一△一△=1,7。△=?口=?
△+△+△一口一口=8,2。口+口十口一△一△=1,7。△=?口=?△+△+△一口一口=8,2。口+口十口一△一△=1,7。△=?口=?
△=5.6 ○=4.3
△+△+△一口一口=8,2。
3*△-2*口=8.2①
口+口十口一△一△=1,7。
3*口-2*△=1.7②
①*2+②*3得
6*△-4*口+9*口-6*△=16.4+5.1
5*口=21.5
口=4.3
口=4.3代入①得
3*△-2*4.3=8.2
3*△=8.2+2*4.3=8.2+8.6=16.8
△=16.8÷3=5.6
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