（X-0.5279）/（0.5319-0.5279）=（0.0703-0.070）/（0.08-0.070）
    X^3+X-1＝0
    X^3×X-1＝0
    （x/22.6）/92*126/126*2*40=0.3
    xxx×x-1＝0
    （x/22.4）*126/63/126*2*80=0.3
     a²+2a-4=0
    3x+3(x+6)=528
    12.06c=（3.4+c）×7.98
    (2x-400)-(x+100)
    2x-400-x+100
    4x2/((1-x)*9*(1-x)4)＝1.05*10-2
    X-(X/1.01*5.3%)=644844.74
    -X-3
    n^2-6n-30=0
    2x^2+x+1=0
    29=25+(x-22)(0.064+0.105+0.06)+0.5*0.7
    29=32+(x-22)(0.064+0.105+0.06)+0.5*0.7
    29=22+(x-22)(0.064+0.105+0.06)+0.5*0.7
    30=22+(x-22)(0.064+0.105+0.06)+0.5*0.7

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