X-0-13818-921-5.3%X=42262
    X-0-13671-911-5.3%X=41812
    X-0-13811-921-5.3%X=42239
    X-0-13662-911-5.3%X=41785
    X-0-14256-950-5.3%X=43602
    X-0-14702-980-5.3%X=44965
    X-0-14553-970-5.3%X=40876
    X-0-14256-950-5.3%X=40876
    X-0-13959-931-5.3%X=40876
    X-0-13365-891-5.3%X=40876
    X-0-29700-1980-5.3%X=45418
    X-0-29700-1980-5.3%X=72670
    X×12+1.5%X=129374
    X-0-29700-1980-5.3%X=90837
    X×12+1.5%X=6037
    X-0-1386-92-5.3%X=4239
    450➗X-450➗（X+5）=1
    4x^4-51x^3+21x^2+1=0
    x/100=（x-100）/60
    0.176x+1.8x^0.4=313.714

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