3.5x-10-x=65怎么解?
3.5x+x=18怎么解
x-3.5x+5=80%x怎么解
X+X-10+X-2=36*3怎么解
(x+x+10+x+8)×3=36怎么解?
20%x=(10+X)*15%x怎么解
X-0.75X=三分之一X-10(怎么解)
(x+12)*(x+12)=x*x+360怎么解
x^2=(x+30)X(x-18)怎么解
1.8(X+10)=0.8X+50 怎么解方程?3.5(X-10)=6.5(100-X)
4*10X+[(X+1)-2]-[10X+(X+1)]=58 怎么解
X-(0.2X+10) -1.2*(0.2X+10)+8=0.36X 怎么解
10*[2-x]-9*[2-x]-8*[2-x]-7*[2-x]=56怎么解