X+15 :40=44:32 (X-300):5=640:8 1.7:(X-7)=6.8:92 解比例
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X+15:40=44:32(X-300):5=640:81.7:(X-7)=6.8:92解比例X+15:40=44:32(X-300):5=640:81.7:(X-7)=6.8:92解比例X+15:4
X+15 :40=44:32 (X-300):5=640:8 1.7:(X-7)=6.8:92 解比例
X+15 :40=44:32 (X-300):5=640:8 1.7:(X-7)=6.8:92 解比例
X+15 :40=44:32 (X-300):5=640:8 1.7:(X-7)=6.8:92 解比例
X+15 :40=44:32
x+15=40*44÷32=55
x=40;
(X-300):5=640:8
x-300=640*5÷8=400
x=700
1.7:(X-7)=6.8:92
x-7=92*1.7÷6.8=23
x=30
(16x-13)/(4x-3)-(20x-24)/(4x-5)=(32x-30)/(8x-7)-(40x-43)/(8x-9)求x
x-40%x-40%x=15
3X+30+X+X-15=?
x加30%x=52、x减40%x=15、50%x加x=31.5、x减1%x=19.8、x加25%x=2.5、x减15%x=8.5
30x=40(x-2)
(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)
(30-x):(18+x)=(20+x):(32-x)
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-30)=(x+40)/X解方程,
(25/X)X(30/X)= 15/X怎么算
X-40%X=15
32+x=58 x-4.2=0.79 4x=44 x÷18=29 6x=30 15÷x=0.532+x=58 x-4.2=0.79 4x=44 x÷18=29 6x=30 15÷x=0.5
x+x=x+15
解方程:(x-3)÷2=7.5 3x+x=30 15x+x=40 2.5x-6=18.5 3x+7=59.2
(x+30)*(x-18)=x*x
解方程 x-1%x=19.8x-40%x=15x+25%x=2.550%x+x=31.5x-15%x=8.5
直接写出X的值8x+4=32 (x+3)除以6=9 80-0.5x=25 38+2x=60 2.5x-2.5=7.5 2(1.2+x)=3.4 40x-0.9=3.1 9x-36=117 4.5x-x=3.5 0.5x+1.05=2x除以19+15=45 x除以94-45=55 12x+24x=12.6 3(x-30)=180 8x+25=1254.6x=9.2 5x-4.2=5.8一楼的 你的答案是很好