30/100x+70/100【200-x】=200×54/100 解X
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30/100x+70/100【200-x】=200×54/100解X30/100x+70/100【200-x】=200×54/100解X30/100x+70/100【200-x】=200×54/100
30/100x+70/100【200-x】=200×54/100 解X
30/100x+70/100【200-x】=200×54/100 解X
30/100x+70/100【200-x】=200×54/100 解X
30/100x+70/100【200-x】=200×54/100
两边乘以100
30x+70(200-x)=200*54
-40x+70*200=200*54
40x=16*200
x=5*16
x=80
(X+X)+(X-X)+(X*X)+(X/X)=100
30/100x+70/100【200-x】=200×54/100 解X
解方程:(X-50)[200+2(70-X)]=4500 (30-2X)(20-2X)=(1-3/8)×30×20 (-1/10X+30)(X-60)=1340(-10X+320)(X-20)-40=310 (X-40)(100-2X+120)=2250 (X-40)(-X/10+8)=17.5
200x+170(70-x)+100(40-x)+x-10=
x+2x+3x+.+100x
X/100 + X/80
X+X+X+X+X+X+100X=1690 问:X等于多少
x(x-1)(x-2)...(x-99)(x-100)
30%x+70%(200-x)=200+54%x
30%x+10%(100-x)=100*x的过程
19-200x+100x*x=0
CF卡100X、133X、200X是什么意思,
X/(X+100)=30%求x多少
(X-30)/X=45/100 求X
解方程:x-15%x=34 x+120%z=180 40%x=60 70%x-45%x=100 1/4x+20%x=9 30%x=9 70%x-55%x=180 x+40%x=420
(100-2X)(X-30)=200的解
(100-2X)(X-30)=200的解
40*(x-100)=100+30x