(求X=?) 120×12-10X+8X=110120×12-10X+8X=110 求X=?

X/15 + X/12 + X/10 = 1365,求X, (求X=?) 120×12-10X+8X=110120×12-10X+8X=110 求X=? 已知x=2π+1求 |x-1|+|x-2|+|x-3|+|x-4|+|x-5|+|x-6|+|x-7|+|x-8|+|x-9|+|x-10| 已知x=2π+1.求(X-1)+(X-2)+(X-3)+(X-4)+(X-5)+(X-6)+(X-7)+(X-8)+(X-9)+(X-10) 已知f(x)=10x^2+8x^5-12x^3求：f(x)÷(-5x^2)和f(x)×（x^2-1)的值 f(X)=10x^2+8x^5-12x^3 求f(X)除以（-5x^2) f(x)乘以（x^2-1) 3^x=2^x,求x.5^(x-1)·10^3x=8^x求x (x+12)(x-2)+(x+7)(x+8)-(x+5)(x-10),其中x=2 14x=12+x 求X 求x:x(10^x)=100 2x×x=10,求x 1X?+2X?+3X?+4X?+5X?+6X?+7X?+8X?+9X?+10X?=1980求?是多少 f[x -x/8-x*x]=√2 10求x^2 20x^10 x (12x-10)/21+(7x-9)/20=(2-x)/15+(8x-9)/12求X 8X+10=10X-8 求X √x^2+8x+16+√x^2-12x+36=10,求x的值 5^(-x-8)=8^(-10x)求x 5^(-x-8)=8^(-10x)求x