50x+50%=121.2
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50x+50%=121.250x+50%=121.250x+50%=121.250x+50%=121.250x+0.5=121.250x=121.2-0.550X=120.7x=2.414
50x+50%=121.2
50x+50%=121.2
50x+50%=121.2
50x+50%=121.2
50x+0.5=121.2
50x=121.2-0.5
50X=120.7
x=2.414
50X+50%X=121.2
x+ x+(x*50%)=1.5X?
50x+50%=121.2
x+3x+x-2+x+x+50%x=188 求x
50X=200+X*X
30%x=50%x-20x
x-50%x=100
90-x=50+x
x+50%x=400
0.4X=X-50
50％x+x=20 x+30％x=52
(x+x+23+x+50)=3x 怎么解
50x(x-1)+60x(x-4)=5100
(x+1)+(x+2)+(X+3).+(x+50)=1325
x(10-x)=50 x=?x(10-x)=50x=?
X-X/12-X/7-X/8-X/4-X/20-X/5-30-120-300=50解方程
10x+2x*[(50-x)/2]+5x[(50-x)/2]=240
130%x+x=4.6 x÷50%=10 x/9-x/15=16%