40*0.5+30x+40*(x-20/60)=180

(16x-13)/(4x-3)-(20x-24)/(4x-5)=(32x-30)/(8x-7)-(40x-43)/(8x-9)求x x-30%x-30%x-20=40 如何解, 60(30x)=40x+20(30+x)+1200 40*0.5+30x+40*(x-20/60)=180 （16x-13)/(4x-3)+（40x-43)/(8x-9)=（32x-30)/(8x-7)+（20x-24)/(4x-5).... （16x-13)/(4x-3)+（40x-43)/(8x-9)=（32x-30)/(8x-7)+（20x-24)/(4x-5) 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 百分数的方程计算题x-40%x=3.6 25%x-16=24 30%x+90=117 x-20%x=28 60%+4x=27.6 14%x-9.1=0.7 35%x+x=13.5 x-75%x=0.5 x-45% 60x+40*(x-0.5) (X+X*20%)-[(1200-X)-(1200-X)*20%]=40% X+X*20%-(1200-X)-(1200-X)*20%=40% X/(x-30)=(x+40)/X解方程, x+20%x =40 x+(x-20)=40 x+20%x=40 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 60x-40=(60+20)*(x-5) 32x-32*0.5-25x+64x=24x+496-49x X/40+(X+20/30=1的解X X+2一 + 一 =1 X+?40 30