0.15x+0.2×(66-x)=[5x+9×(66-x)]×0.18 解x 急

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0.15x+0.2×(66-x)=[5x+9×(66-x)]×0.18 解x 急

0.15x+0.2×(66-x)=[5x+9×(66-x)]×0.18 解x 急
0.15x+0.2×(66-x)=[5x+9×(66-x)]×0.18 解x 急

0.15x+0.2×(66-x)=[5x+9×(66-x)]×0.18 解x 急
0.15x+0.2×(66-x)=[5x+9×(66-x)]×0.18
0.15x-0.2x+13.2=(594-4x)*0.18
13.2-0.05x=106.92-0.72x
0.67x=93.72
x=9372/67

0.15x+13.2-0.2x=0.9x+106.92-1.62x
0.67x=93.72
x约等于139.88

0.15x+0.2×(66-x)=[5x+9×(66-x)]×0.18
0.15x+13.2-0.2x=(5x+594-9x)*0.18
13.2-0.05x=106.92-0.72x
0.72x-0.05x=106.92-13.2
0.67x=93.72
x=93.72/0.67
x≈139.88

0.15+13.2-0.2x=(594-4x)*0.18
13.35-106.92=-0.72x+0.2x
0.5x=93.57
x=187.14

0.15x+0.2×(66-x)=[5x+9×(66-x)]×0.18 解x 急 用递归法求y=x-(x*x*x/3!)+(x*x*x*x*x/5!)-(x*x*x*x*x*x*x/7!)+. X-0.15X=? （X+X)+(X-X)+(X*X)+(X/X)=100 x-三分之一x-四分之一x(x-三分之一x)=5 x+2x+3x+4x+5x+6x+7x+8x+9x=9x-8x-7x-6x-5x-4x-3x-2x-x.x等于多少? 化简(2x-5)(3x+2)-6(x+1)(x-2),其中x=0.2 x*x*x*x*x=80000? 解方程x/(x-2)=2x/(x-3)+(1-x)/(x-5x+6) (x+12)(x-2)+(x+7)(x+8)-(x+5)(x-10),其中x=2 x-2x+3x-4x+5x.+99x-100x=25求解 x.x-5x+1=0,那么x.x+1/x.x 2x+3x+4x+5x+x+6x+7x=100 x(x-2)-2x(x+1)-3x(x-5) 其中x=负½ (x-3/x-2)-(x-2/x-1)=(x-5/x4) -(x-4/x-3) x(x+1)+(x+2)+(x+3)+(x+4)+(x+5) = 27求x 66=X+0.25X求X x-4/x-5 - x-5/x-6=x-7/x-8 - x-8/x-9求x=?