(1+0.25+0.39)X(0.25+0.39+0.87)-(1+0.25+0.39+0.87)X(0.25+0.39)怎么计算?要用简便方法,包括结果,
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(1+0.25+0.39)X(0.25+0.39+0.87)-(1+0.25+0.39+0.87)X(0.25+0.39)怎么计算?要用简便方法,包括结果,(1+0.25+0.39)X(0.25+0.
(1+0.25+0.39)X(0.25+0.39+0.87)-(1+0.25+0.39+0.87)X(0.25+0.39)怎么计算?要用简便方法,包括结果,
(1+0.25+0.39)X(0.25+0.39+0.87)-(1+0.25+0.39+0.87)X(0.25+0.39)怎么计算?要用简便方法,包括结果,
(1+0.25+0.39)X(0.25+0.39+0.87)-(1+0.25+0.39+0.87)X(0.25+0.39)怎么计算?要用简便方法,包括结果,
(1+0.25+0.39)X(0.25+0.39+0.87)-(1+0.25+0.39+0.87)X(0.25+0.39)
=(1+0.25+0.39)X(0.25+0.39+0.87)-(1+0.25+0.39）X(0.25+0.39)+0.87X(0.25+0.39)
=(1+0.25+0.39)X(0.25+0.39）+(1+0.25+0.39)X0.87-(1+0.25+0.39）X(0.25+0.39)-0.87X(0.25+0.39)
=(1+0.25+0.39)X0.87-0.87X(0.25+0.39)
=0.87+0.87X(0.25+0.39）-0.87X(0.25+0.39
=0.87
x-0.25x+1=10.4x+0.25x-1
x=1+0.5x+0.25x+0.125x+0.0625x求x的值
x-1/0.25-x/12.5=1.2 x等于多少?
0.3(x+1)+0.25(100-x)=2/5x
69.5+0.25X=X-1
69.5-0.25X=X-1
0.25/2x+1-0.5/x-2
0.3x+7x-0.25x=21.15 x+7=2x+3 1.2x+1=0.01x+三分之五 4x-26=3x+4 6x+2=5x+110.3x+7x-0.25x=21.15x+7=2x+31.2x+1=0.01x+三分之五4x-26=3x+46x+2=5x+114(x+1)=x+10
求1/2x^2-1/4x+0.2x^3+0.25x-0.5x^2-1/5x^3+0.5x-1 其中x=12/13
求1/2x^2-1/4x+0.2x^3+0.25x-0.5x^2-1/5x^3+0.5x-1 其中x=12/13
解方程：5x+5=-0.25x(x+1)-0.25(x+1)-4.75
(0.5x+1)+(0.25x+0.5)+(0.125x+2.25)=x怎么解,
0.25X+1/3X+(0.25X+1/3X)*1/7+30=X 这个方程怎么解
0.25x
1/2X^3-1/4X+0.2X^2+0.25x-0.5x^3-1/5x^2的值与x无关
（x-4)-(x+4)=0.25x
66=X+0.25X求X
0.25x+3.6=x解x