100*x+50*(16-x)=1400 怎么解
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100*x+50*(16-x)=1400怎么解100*x+50*(16-x)=1400怎么解100*x+50*(16-x)=1400怎么解100X+800-50X=140050X=1400-800=6
100*x+50*(16-x)=1400 怎么解
100*x+50*(16-x)=1400 怎么解
100*x+50*(16-x)=1400 怎么解
100X+800-50X=1400
50X=1400-800=600
X=12
（X+X)+(X-X)+(X*X)+(X/X)=100
100*x+50*(16-x)=1400 怎么解
x-50%x=100
x+ x+(x*50%)=1.5X?
(100-2x)(50-2x)=3600 5000-200x-100x+4x(2)=3600 4x(2)-300x+1400=0(100-2x)(50-2x)=36005000-200x-100x+4x^2=36004x^2-300x+1400=0为什么不是5000-3600=200x+100x+4x^2=300x+100x+4x^2-1400=0
X+X+X+X+X+X+100X=1690 问：X等于多少
130%x+x=4.6 x÷50%=10 x/9-x/15=16%
3x-2(x+3)/3=16-x+2/2-x-2/6x-100/50-2=x-100/60+5
50x+200(22-x)=1400
200x+50(22-x )=1400
3x=x+100 x=50
x/50+3(x+300)/100=300.x=?
y=(100-20x)/4+x 4(16x/24+x)+20(y-x-16x/24)=100
x/2*50+100=50x
30%x+16=50%x+12
50x=100,x=?
12x+100=9x+16
(x-10)/x*100%=50%求解