8:12=3:(6-x) 具体怎么解?
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8:12=3:(6-x) 具体怎么解?
8:12=3:(6-x) 具体怎么解?
8:12=3:(6-x) 具体怎么解?
8(6-x)=12*3 48-8x=36 -8x=36-48 -8x= -12 x=3/2