40*0.5+30x+40*(x-20/60)=180
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40*0.5+30x+40*(x-20/60)=180
40*0.5+30x+40*(x-20/60)=180
40*0.5+30x+40*(x-20/60)=180
40*0.5+30x+40*(x-20/60)=180
20+30x+40x-40/3=180
70x=180-20+40/3
70x=160+40/3
7x=16+4/3
7x=52/3
x=52/21
20+30X+40X-40/3=180
60+210X-40=540
210X=520
X=52/21。
(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