2X=0.5;.025
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![2X=0.5;.025](/uploads/image/z/5259718-46-8.jpg?t=2X%3D0.5%3B.025)
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2X=0.5;.025
2X=0.5;.025
2X=0.5;.025
5分之2:2X=0.5:0.25
2/5:2x=2:1
4x=2/5
x=1/10
5/2:2x=0.5:0.25
2/5:2x=2:1
4x=2/5
x=1/10
2/5:2X=0.5:0.25
2X*0.5=2/5*0.25
X=0.1
还有简单的抢分题没?这次来迟了,哈哈
2X=0.5;.025
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