(506+11x)÷(24+x)=16.5

16.5(24+x)=506+11x怎么解 (x-22)+(x-24)+(x-27)+(x-20)=x x-2/13x=11/24 （X+X)+(X-X)+(X*X)+(X/X)=100 1.25-x=2.8 2.36÷x+9=0 3.33x=79-x 4.5x-(11-7)=x+3 5.169÷（x+9) x+(x+24)+(x+4)/2=7x 3x-x=24 x+24=4.5X (2x-1)/(x-1)(x-2)=(x-5)/(x-2)(x-3) x/2x^2-11x-21=(x+7)/x^2-1 解方程：1/(x*x+11x-8)+1/(x*x+-8)+1/(x*x-3x-8)=0 解方程：5x(x+7)(x+4)=5x(x的平方+11x) 5x(x+7)(x+4)=5x(x^2+11X)