Mathematics
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    X/111-.2-20/44.7=0.00143(X+220)
    ((0.4/1.38)^(0.9+(0.05-x)/(0.3+6*x)))*(1+(0.05-x)/(0.08+1.6*x))*0.16=81.6*10^(-3)*4*3.14^2/1.38^2
    2(7-Y)+3Y=15
    a(20-a)=32
    a(20-a)=32
    a(20-a)=32
    -0.2231x2 - 0.7522x + 26.094=1/(E^16x) + 6.5
    -0.2231x2 - 0.7522x + 26.094=1E-16x + 6.5
    X/111-.2-20/44.7=0.00238(X+135)
    X/111-.2-20/44.7=0.00238(X+120)
    (-2x+1-1)^2
    (-2x+1-1)^2
    3/8x+1/4=x-1/7
    16/(x+2)^2
    28*28=3.8616x+12.091x*x
    ㏑x-3÷x=1
    ㏑x-3x=1
    (cosX)^2-2X^2 = 0
    (cosX)^2-4X^2 = 0
    (cosX)^2-X^2 = 0

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