18.5x+26—64.01=0.
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18.5x+26—64.01=0.18.5x+26—64.01=0.18.5x+26—64.01=0.18.5x-0.4x=64.01-2618.1x=38.01x=2.1
18.5x+26—64.01=0.
18.5x+26—64.01=0.
18.5x+26—64.01=0.
18.5x-0.4x=64.01-26
18.1x=38.01
x=2.1
18.5x+26—64.01=0.
18.5x+26-46.01=0.4x
设函数f( x)={log3(X),X>0.=—log1/3(—X),X
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-25)+(x-23)+(x-27)+(x-21)+(x-26)=x 求x
(2x+18.5*2+1)*(2x+26)=1260 x=?(2x+18.5*2+1)*(2x+26)=1260x=？
x-0.25x=0.
x+4.5x=0.
X-0.25x=0.
4.8x-x=0.
X-0.25x=0.
2.2x-x=0.
120X-X=0.
x-0.4x=0.
1.2x-x=0.
X-0.48X=0.
16^X - 12^X -9^X = 0.求X.
(98-X)+(100-X)+X=X/0.