0.25x=0.125(120-x)+15
x+x=x+15
已知 X=4- 根号3 求 (X*X*X*X-6X*X*X-2X*X+18X+23) / (X*X-8X+15)的值
解方程:25%x=75 60%x-35%x=125 x-40%x=120 x+15%x=115 15x-30=150 8
x+25%x=2500 x-12%=4.4 45%x+15%=36 120%x-x=56 48%x-12%x=72 【解
(X+X)+(X-X)+(X*X)+(X/X)=100
x(120+x)*80%=x-76
X-0.25=15 11.1+x=3.63 0.5X+x=6
x-0.25=0.25x
X/15 + X/12 + X/10 = 1365,求X,
(25/X)X(30/X)= 15/X怎么算
x-8/5x=15 5/1x+10/3x=120 20%x=30
(3x*x+3x*x+x*x)*2=120,