8x-6.4x=13.6怎么解
(x+x+10+x+8)×3=36怎么解?
X+8+X=3X怎么解
(x/8+x/12)*3+(x/12+x/24)y=x怎么解,
(x+12)*(x+12)=x*x+360怎么解
x^2=(x+30)X(x-18)怎么解
2x+1.5x=17.5 8x-3x=105 3x+x+6=26 怎么解
x/40+x/60+[20-(x/40+x/60)*8]÷40=x/40+(20-x)/8怎么解
(8-x)(8-x)+(7-x)(7-x)=25怎么解啊
10*[2-x]-9*[2-x]-8*[2-x]-7*[2-x]=56怎么解
X-0.5X-12-0.5(X-0.5X-12)-8=18怎么解
12X+10(X-3)+8[105-(X+X-3)]=1086 怎么解
X-(0.2X+10) -1.2*(0.2X+10)+8=0.36X 怎么解