x(1+30%)+(960-x)(1+25%)=1228 怎么算
x(1+30%)+(960-x)(1+25%)=1228 怎么算
(25/X)X(30/X)= 15/X怎么算
x+(20%+x)+(1+20%)x+(1+20%)x.25=3700 怎么算啊
1.5X+20=1X(50-X)怎么算?
1-25%)x-4=2/3×x 怎么算
(1-25%)x=36怎么算?
x+1分之x-1 + 1-2x分之2x=0怎么算,
(2x+1)²-(x+3)(3-x)=6x怎么简便算?
x²+2x-6/x²+2x=1怎么算
3(1/3x-1/5x)=x-1-1/3x-1/5x 这道题怎么算?
60:(x-60)=(x+1/2x-30):(x+1/2x+30)方程怎么解
2(x-1)(x+5)-3(x-2)-4x=2x的平方+7方程题怎么算?