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2个回答
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解:x ÷ 0.8 = 37.5
x ÷ 8/10 = (37×10 + 5)/10
x ÷ 8/10 = 375/10
x = 375/10 × 8/10
x = 75/2 × 4/5
x = 30
∴此方程的解为x = 30
x ÷ 8/10 = (37×10 + 5)/10
x ÷ 8/10 = 375/10
x = 375/10 × 8/10
x = 75/2 × 4/5
x = 30
∴此方程的解为x = 30
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