解方程,并验算.12X=6O,1.25y=10,9.99一x=2,34.2÷y=11.4,x÷0.9=2,x一51=62.5

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解方程,并验算.12X=6O,1.25y=10,9.99一x=2,34.2÷y=11.4,x÷0.9=2,x一51=62.5
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解方程,并验算.12X=6O,1.25y=10,9.99一x=2,34.2÷y=11.4,x÷0.9=2,x一51=62.5
解方程,并验算.12X=6O,1.25y=10,9.99一x=2,34.2÷y=11.4,x÷0.9=2,x一51=62.5

解方程,并验算.12X=6O,1.25y=10,9.99一x=2,34.2÷y=11.4,x÷0.9=2,x一51=62.5