(40-x)(x-20-1)-12.5-10等于多少?

x{x+1}{x-1}}x-2}{x-3}-40 (40-x)(x-20-1)-12.5-10等于多少? x-1/5x-40%x=20 怎么解 解方程：x-60%x=240 x+20%x=24 1-25%x=十六分之三 160%x-x=9 58%x-23%x=24 40%x+70%x-x=1.8 x/20-x/40=1 x+3/20x=46 ,x-1/5x=40 ,x-1/2x=3/4 ,x-0.2x=18解方程 40%x+21=37x-78%x=2.2x+30%x=26(1-25%)x=1540%x-30=152x+20%x=3.3怎么列式计算jijiji40%x+21=37x-78%x=2.2x+30%x=26(1-25%)x=1540%x-30=152x+20%x=3.3 x-2=(104-x)+2 6x-59=10x-75 (x+10)+(x-15)=280-x4（x-62)=x-38 60x-40=(60+20)*(x-5) 32x+32*0.5-25x+64x=24x+496-49x x+15=3*(109-x ) 5(3x-1.4)=2(6x-0.5) 3(x+0.9)=5(x-1.7) 13x-4(2x+5)=17(x-2)-4(2x-1) (13x+8)/3=5x-1x-60=2[(3561-x)+100]+1 (x+9)+12=2[(x-9)-1 x*x*(1/4)=20x (1)2(2-x)-3=-(x-1)(2)12(3-2x)-3=9(3-2x)(3)(1-x)/6-(x-2)/3=0(4)x/3=(x+2)/2-1(5)(2-x)/3=(x-2)/4-1(6)5x/12=(2x-1)/4-1(7)(x-3)/0.15-(x+4)/0.2=1.6(8)(40-x)*20％=40*12.5％ 12.5％x+1=x 12.5％x+1=x (X+X*20%)-[(1200-X)-(1200-X)*20%]=40% X+X*20%-(1200-X)-(1200-X)*20%=40% x{x+1}{x-2}{x-3}-40 分解因式:x(x-1)(x+2)(x+3)-40 x/x+(1-x)/x-1/x x+20%x =40