0.25x=0.5(13-x)
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0.25x=0.5(13-x)0.25x=0.5(13-x)0.25x=0.5(13-x)1/4X=1/2(13-X)X=2(13-X)X=26-2X3X=26X=26/30.5=13-×0.25X=
0.25x=0.5(13-x)
0.25x=0.5(13-x)
0.25x=0.5(13-x)
1/4X=1/2(13-X)
X=2(13-X)
X=26-2X
3X=26
X=26/3
0.5=13-×
0.25X=6.5-0.5X
0.75X=6.5
X=13/15
0.25x=0.5(13-x)
0.25x=6.5-0.5x
0.25x+0.5x=6.5
0.75x=6.5
3/4x=13/2
x=13/2÷3/4
x=26/3
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0.25X=6.5-0.5X
0.75X=6.5
X=26/3
x等于8点666666 6是循环的
✘=26/3
0.25x=0.5(13-x)
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