8(x-12.5)=6.4
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8(x-12.5)=6.48(x-12.5)=6.48(x-12.5)=6.4我们一步一步来8x-12.5*8=6.48x=6.4+12.5*88x=6.4+1008x=106.4x=13.3这种题只
8(x-12.5)=6.4
8(x-12.5)=6.4
8(x-12.5)=6.4
我们一步一步来
8x-12.5*8=6.4
8x=6.4+12.5*8
8x=6.4+100
8x=106.4
x=13.3
这种题只需要一步一步化简就可以了
8x-100=6.4
8x=106.4
x=13.3
x-12.5=0.8 x=13.3