x:8=0.125:0.25

x=1+0.5x+0.25x+0.125x+0.0625x求x的值 x:8=0.125:0.25 x+y/0.75 +x/0.5=8 2x/0.25+1-2y/0.125=8 0.25x=0.125(120-x)+15 求未知数x的值(x+4)÷5=61.2×(x+5)=14.44.2x÷1.6-14=0.175(10-7.5)x=0.125×85x-20%x=19.281x-342=76(x-2)0.3x+7x-0.25x=21.15x÷1右5/18=2右8/231右2/3-1右7/30x=1右1/201/2x+1/3x=4 x+0.25x=7分之8求X x+0.25x=8分之7 函数值域 单调区间1.y=(0.25)^x-(0.5)^x+12.y=log2(-x^2+4x+5)3.y=[log0.5(x)]^2-[4log0.5(x)]-5 (0.125≤x≤8)4.y=3^(x^2-2x+3)5.y=(0.5)^[x/(x+2)] x/x-2+x-9/x-7=x+1/x-1+x-8/x-6, x/x-2+x-9/x-7=x+1/x-1+x-8/x-6, (0.5x+1)+(0.25x+0.5)+(0.125x+2.25)=x怎么解, 解方程 {x+y/0.75+x/0.5=8 2x/0.25+1-2y/0.125=8 x+2x+3x+4x+5x+6x+7x+8x+9x=9x-8x-7x-6x-5x-4x-3x-2x-x.x等于多少? 8+5x=100 0.273除x=0.35 25-0.25x=15 4.2x+2.8x=148+5x=100 0.273除x=0.3525-0.25x=154.2x+2.8x=14 （x-4)-(x+4)=0.25x 66=X+0.25X求X 0.25x+3.6=x解x (x+12)(x-2)+(x+7)(x+8)-(x+5)(x-10),其中x=2