x减百分之37.5等于35怎么列数式?
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解:解方程, 此方程的解为x = 283/8,【即x = 35.375】
x减百分之37.5等于35
x - 百分之37.5 = 35
x = 35 + 百分之37.5
x = 35 + 37.5 ÷ 100
x = 35 + (37×10+5)/10 × 1/100
x = 35 + 375/10 × 1/100
x = 35 + 75/2 × 1/100
x = 35 + 3/8
x = 280/8 + 3/8
x = 283/8
∴x = 35.375
答:此方程的解为x = 283/8,【即x = 35.375】
x减百分之37.5等于35
x - 百分之37.5 = 35
x = 35 + 百分之37.5
x = 35 + 37.5 ÷ 100
x = 35 + (37×10+5)/10 × 1/100
x = 35 + 375/10 × 1/100
x = 35 + 75/2 × 1/100
x = 35 + 3/8
x = 280/8 + 3/8
x = 283/8
∴x = 35.375
答:此方程的解为x = 283/8,【即x = 35.375】
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