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x一0.25x二1.5怎么算
x一0.25x二75的解方程
x一0.25x二0.9
x一0.25x二45
x一0.25x二3
x一0.125x二8
x+0.25x=12.5
x一0.25x=2.8十0.2
x一0.55x=2.25
x-0.12x=2.816
x一0.36x二12.8
x一0.24x=2.28
x十0.23x二2.46
x-0.2x=12
x一0.26x=2.59
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