100(95-x) - 80(100-x) = 100 (240-x)/x100%=20% (100%-10%)y=270 怎么解,

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100(95-x)-80(100-x)=100(240-x)/x*100%=20%(100%-10%)*y=270怎么解,100(95-x)-80(100-x)=100(240-x)/x*100%=2

100(95-x) - 80(100-x) = 100 (240-x)/x*100%=20% (100%-10%)*y=270 怎么解,
100(95-x) - 80(100-x) = 100 (240-x)/x*100%=20% (100%-10%)*y=270 怎么解,

100(95-x) - 80(100-x) = 100 (240-x)/x*100%=20% (100%-10%)*y=270 怎么解,
你能不能写清楚一点,这样很让人费解你的问题.

X/100 + X/80 （X+X)+(X-X)+(X*X)+(X/X)=100 x+2x+3x+.+100x X+X+X+X+X+X+100X=1690 问：X等于多少 x(x-1)(x-2)...(x-99)(x-100) 100(95-x) - 80(100-x) = 100 X/100+X/80=9/4x 80x=100x(x-4)方程怎么解（X/80+X/100 +5）*40=X, 80(X+100)=X(60+X)怎么解 100-X=11分之7x(80+X)=? x+80=100+x 求X是多少? 2X/(X/80+X/100）= 100x=80*(72-x) (100-X)(80-X)=7644 80*X=100*(X-60) (80-x)(100-x)=1200诶解是 80（X+2）=100X