焚书坑儒到底是怎么回事？-专业问答网站，快速解决问题

焚书坑儒到底是怎么回事？-专业问答网站，快速解决问题

0.4x-20%x=3/5

To solve this equation, we need to first distribute the 20% over the x term: 0.4x - (20/100)x = 3/5 Simplifying the equation, we get: 0.4x - 0.2x = 3/5 Combining like terms, we have: 0.2x = 3/5 To solve for x, we need to get rid of the coefficient 0.2, so we divide both sides of the equation by 0.2: (0.2x)/(0.2) = (3/5)/(0.2) Simplifying further, we get: x = (3/5)/(0.2) To divide fractions, we multiply the numerator by the reciprocal of the denominator: x = (3/5) * (1/0.2) x = (3/1) * (5/0.2) x = 15/0.2 Finally, we can simplify the fraction by dividing the numerator by the denominator: x = 75/1 x = 75

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