(x+40%x)乘以80%=224
(1+40%)乘以X乘以80%—X=15
解方程 (x+x+三分之一x)乘以3=308 0.3x+0.2乘以(160-x)=36 x+10=40%乘以(36-x+
X 乘以 (1+50%)乘以80%+(2000-X)乘以(1+40%)乘以80%=2000+300 麻烦把上面的每一项都
解方程 24乘以5+5乘以(x-5)=(24乘以5 +5x)乘以0.9
7—0.5x=1.25x(乘以)6
(x+y)9次方乘以(x+y)=
为什么(x趋向正无穷时)lim x乘以ln[(x+a)/(x-a)]=lim x乘以{[(x+a)/(x-a)]-1}
解方程:30乘以5+5X+5=(30乘以5+5X)乘以0.9 怎么解
3.14乘以X=16.56-X
计算:x的平方-3x分之x乘以(x的平方-9)=?
①2x-4分之x方-4x+4乘以(x+2)=?
0.04分之0.1X-0.3-X=0.4乘以(0.5X-3)求X