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x一0.25x二0.9的解方程
x一0.25x二1.5怎么算
x一0.25x二45
x一0.25x二12
x一0.05x二20.9
x一0.25x=2.8十0.2
x-0.25x=0.9
x—0.25x=0.9
x一0.55x=2.25
x一0.26x=2.59
x一0.25x二3
x一0.84x二21.6
x十0.23x二2.46
x一0.24x=2.28
x+0.25x=10
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