40/(x-2)=5
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40/(x-2)=540/(x-2)=540/(x-2)=5因为x-2不可能等于0,所以两边同时×(x-2),就得到:40=5(x-2)=5x-10,所以5x=50,x=1040=5(x-2)X-2=
40/(x-2)=5
40/(x-2)=5
40/(x-2)=5
因为x-2不可能等于0,所以两边同时×(x-2),就得到:40=5(x-2)=5x-10,所以5x=50,x=10
40=5(x-2)
X-2=5*40
X—2=200
X=202
40=5(x-2)
X-2=40/5
X-2=8
X=10
x^2- +40=(x-5)(x-8)
18x+[5-x]2=40+6x
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(x-3/x-2)-(x-2/x-1)=(x-5/x4) -(x-4/x-3)
x-2x+3x-4x+5x.+99x-100x=25求解
2x+3x+4x+5x+x+6x+7x=100
x(x+1)+(x+2)+(x+3)+(x+4)+(x+5) = 27求x
x+40=2x x=?
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x+2/x+1-x+4/x+3=x+6/x+5-x+8/x+7 x=?
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x^5-2x^3+x=?
写过程x(x-1)+2x(x+1)-3x(2x-5)-x(3x-2)+2x(2-x)=-5x(x-2)-4