0.5x+2/0.03-x=0.3(0.5x+2)/0.20.5x+2/0.03-x=0.3(0.5x+2)/0.2
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0.5x+2/0.03-x=0.3(0.5x+2)/0.20.5x+2/0.03-x=0.3(0.5x+2)/0.20.5x+2/0.03-x=0.3(0.5x+2)/0.20.5x+2/0.03-x
0.5x+2/0.03-x=0.3(0.5x+2)/0.20.5x+2/0.03-x=0.3(0.5x+2)/0.2
0.5x+2/0.03-x=0.3(0.5x+2)/0.2
0.5x+2/0.03-x=0.3(0.5x+2)/0.2
0.5x+2/0.03-x=0.3(0.5x+2)/0.20.5x+2/0.03-x=0.3(0.5x+2)/0.2
0.5x+2/0.03-x=0.3(0.5x+2)/0.2
两边同时乘以6得
3x+400-6x=9(0.5x+2)
3x+400-6x=4.5x+18
3x-6x-4.5x=18-400
-7.5x=-382
x=764/15
764/15
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
解方程.（0.5x+2)/0.03-x=[0.3(0.5x+2)]/0.2解方程.（0.5x+2)/0.03-x=[0.3(0.5x+2)]/0.2
0.2x+0.5/0.5--0.03+0.12x/0.3=x-6/2（0.2x+0.5)/0.5-（0.03+0.12x)/0.3=（x-6)/2
0.5x+2/0.03-x=0.3(0.5x+2)/0.20.5x+2/0.03-x=0.3(0.5x+2)/0.2
0.5X+120+0.3X=X
x-0.3x-0.5x=20
(0.5x+2)/0.03-x=0.3(0.5x+2)/0.2-10又12分之11
0.5x+2/0.03-x=0.3(0.5x+2)/0.2
(1)1/3[1/2x-1/4(4/3x-2/3)]=1-1/3x (2)2x-0.5x+2/0.03=x/6-0.3(9x+8)/0.2 (3)|3x-1/-2|=7
x+0.5x=0.3
[0.05x+0.2]/0.03-x={0.3[0.5x+2]}/0.2
当x=_____时,代数式(0.3-x)/2-(0.4+x)/3+(0.5-x)/6的值大于0.
x+2/2x+2-x/2x=0.(x 2/2x 2)- (x/2x)=0.1
(0.4x+0.9)/0.5-(0.03+0.02x)/0.03=(x-5)/2 x等于多少?
(x-1)/0.3-(x+7)/0.5=1.7 x/0.7-(0.17-0.7x)/0.
0.02x-0.01/0.03-0.4x+0.2/0.5-3X+2/4=-3求x
1-0.5x/0.3-2/3x=0.3x/0.2x+1
(20+x)= 2*[20+(35-x)] 0.3/0.5=x+1/2x-1