Overview: 2 questions will be solved this time.Among them
           ☆1 equations
           ☆1 arithmetic calculations

[1/2 Formula]
    Work: Calculate the value of equation (8.41×0.7)/2×(2/3×0.7)+((-36.9-20.56)×1.9)/2×(2/3×1.9×(-2×36.9-20.56)/(-36.9-20.56)+0.7) .
    Question type: Mathematical calculation
    Solution:
          (8.41×0.7)/2×(2/3×0.7)+((-36.9-20.56)×1.9)/2×(2/3×1.9×(-2×36.9-20.56)/(-36.9-20.56)+0.7)
        =5.887/2×(2/3×0.7)+((-36.9-20.56)×1.9)/2×(2/3×1.9×(-2×36.9-20.56)/(-36.9-20.56)+0.7)
        =5.887/2×0.466667+((-36.9-20.56)×1.9)/2×(2/3×1.9×(-2×36.9-20.56)/(-36.9-20.56)+0.7)
        =5.887/2×0.466667+((-57.46)×1.9)/2×(2/3×1.9×(-2×36.9-20.56)/(-36.9-20.56)+0.7)
        =5.887/2×0.466667+(-109.174)/2×(2/3×1.9×(-2×36.9-20.56)/(-36.9-20.56)+0.7)
        =5.887/2×0.466667+(-109.174)/2×(2/3×1.9×(-94.36)/(-36.9-20.56)+0.7)
        =5.887/2×0.466667+(-109.174)/2×(2/3×1.9×(-94.36)/(-57.46)+0.7)
        =5.887/2×0.466667+(-109.174)/2×2.780103
        =2.9435×0.466667+(-109.174)/2×2.780103
        =1.373634+(-109.174)/2×2.780103
        =1.373634+(-54.587)×2.780103
        =1.373634+(-151.757482)
        =-150.383848
    Answer:(8.41×0.7)/2×(2/3×0.7)+((-36.9-20.56)×1.9)/2×(2/3×1.9×(-2×36.9-20.56)/(-36.9-20.56)+0.7)=-150.383848
[ 2/2 Equation]
    Work: Find the solution of equation -20.56x（x/2+2.6）+(8.6x^2)/2（2/3x+2.6） = 126.77x(x/2+2.6)+(46x^2)/2(2/3x+2.6) .
    Question type: Equation
    Solution:
    the solutions is:
        x=0    
    There are 1 solution(s).

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