x-0.75x=3.8+0.
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x-0.75x=3.8+0.x-0.75x=3.8+0.x-0.75x=3.8+0.(1-0.75)x=40.25X=4X=16
x-0.75x=3.8+0.
x-0.75x=3.8+0.
x-0.75x=3.8+0.
(1-0.75)x =4
0.25X =4
X=16
x-0.75x=3.8+0.
x+0.75x/0.
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+X)+(X-X)+(X*X)+(X/X)=100
2.6x-x-0.1x=0.75
3.8 x-x=0.56
3.8x-x=5.
0.75x+x=17.5
x-25%x=0.75
x-0.75x=1.
16^X - 12^X -9^X = 0.求X.
(98-X)+(100-X)+X=X/0.
x-0.25x=0.
x+4.5x=0.
X-0.25x=0.
4.8x-x=0.
X-0.25x=0.
2.2x-x=0.