0.1x-0.3/0.02-x+1/0.5=1
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0.1x-0.3/0.02-x+1/0.5=10.1x-0.3/0.02-x+1/0.5=10.1x-0.3/0.02-x+1/0.5=10.1x-0.3/0.02-x+1/0.5=1-0.9x-15
0.1x-0.3/0.02-x+1/0.5=1
0.1x-0.3/0.02-x+1/0.5=1
0.1x-0.3/0.02-x+1/0.5=1
0.1x-0.3/0.02-x+1/0.5=1
-0.9x-15+2=1
0.9x=-14
x=-140/9
0.1x-0.3/0.02-x+0.5=1
0.1x-15-x+2=1
-0.9x=14
x=-140/9
即50(0.1x-0.3)-2(x+1)=1
5x-15-2x-2=1
5x-2x=1+2+15
3x=18
x=18÷3
x=6
(0.05+0.02x)/0.03-(1-0.3x)/0.
0.1x-0.3/0.02-x+1/0.5=1
0.1X-0.2/0.02-2X+1/0.
(x+1)/0.3-2x=(0.1x+0.2)/0.05
(x-0.6)/0.4+x=(0.1x+1)/0.3
(x-0.6)/0.4-x=(0.1x+1)/0.3
3(X-1)=2X+5 x-2/0.5 - x+1/0.3=13(X-1)=2X+5 x-2/0.5 - x+1/0.3=1x/5 - 3-2x/2=x 0.1x-0.2/0.02 - x+1/0.5=3
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
x-2-2-x/2=x-2/3 x-0.6/0.4+x=0.1x+1/0.3
x+1/0.3—2x=0.1x+0.2/0.
1-0.3分之1.7-2x＝0.7分之x-1 0.3分之0.2x-0.1-0.05分之0.01x+0.02=0.1x
(x-1)/0.3-(x+7)/0.5=1.7 x/0.7-(0.17-0.7x)/0.
(x/5+4/5)-x+5=(0.1x/0.3)+1-(x/2-1)
x+1 0.1x+0.2 _____ -2x = _____ 0.3 0.05x+1 0.1x+0.2 0.3 0.05
数学题,一元一次方程. x-4=2-5x 4x-3（20-x)=5x-7(20-x) 1-2x-5/6=3-x/4 x/0.3-0.17-0.2x/0.02=1
x/x+(1-x)/x-1/x
x-2/6-x+2/3=x-1/2+10.01+0.02x/0.03-1-0.3x/0.2=1
x+2/2x+2-x/2x=0.(x 2/2x 2)- (x/2x)=0.1