3x / 0.5 - 2-x/0.4 = 1
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3x / 0.5 - 2-x/0.4 = 1
3x / 0.5 - 2-x/0.4 = 1
3x / 0.5 - 2-x/0.4 = 1
3x / 0.5 - 2-x/0.4 = 1
6x - 2 - 2.5x = 1
3.5x = 3
x = 6/7
6x-2-5x/2=1
12x-4-5x=2
7x=6
x=6/7
x/0.5-0.4x-0.6/0.2=2(-x+3)
0.02x-0.01/0.03-0.4x+0.2/0.5-3X+2/4=-3求x
1、0.3X-0.4X=0.5 2、5X-2.5X+3.5X=-18 3、X-2/5X=-3+6解这些一元一次方程,
(x+2)(x-1)+(x+3)(x+1)=x·x-1 求x (5x-4)(2x+5)(3x-6)(2x-4)=(2x-4)(2x+5)·0.5 求x
(X+1)X(X+2)X(X+3)=504
一个“整式的乘法”的问题请先阅读下列解题过程,再仿做下面的问题.已知X*X + X - 1=0,求X*X*X + 2*X*X + 3的值.解X*X*X + 2X*X +3=X*X*X +X*X -X +X*X +X +3=X{X*X +X -1} +X*X +X -1 +4=0+0+4=4+ x + X*X + X*X*X=0.+ X*X + X*X*X
12x-2/21x=快点9点之前还有7x-x+2/3x-3(4x-0.5)-2x+(3x-1)-(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?
2(3-x)=9 求x 4(x+0.5)+x=17求x
0.5x(x+2)=1-x(3-.05x) X=?
(X-4)(x-2)-2(X-1)(X+3)其中X=-0.5
(x-3/x-2)-(x-2/x-1)=(x-5/x4) -(x-4/x-3)
解方程,我一定采纳,0.4(2x+3)=0.8(1-x)-0.5(x-2)0.4(2x+3)=0.8(1-x)-0.5(x-2)
解方程x/(x-2)=2x/(x-3)+(1-x)/(x-5x+6)
x(x-2)-2x(x+1)-3x(x-5) 其中x=负½
x-2x+3x-4x+5x.+99x-100x=25求解
x+3x+x-2+x+x+50%x=188 求x
2x+3x+4x+5x+x+6x+7x=100