(x-45)/(x-24)=62.5%,怎么算
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(x-45)/(x-24)=62.5%,怎么算
![(x-45)/(x-24)=62.5%,怎么算](/uploads/image/z/8434212-60-2.jpg?t=%28x-45%29%2F%28x-24%29%3D62.5%25%2C%E6%80%8E%E4%B9%88%E7%AE%97)
两边乘以x-24
x-45=0.625(x-24)
x-45=0.625x-15
x-0.625x=45-15
0.375x=30
x=30÷0.375
x=80
x-45=0.625(x-24)
x-45=0.625x-15
x-0.625x=45-15
0.375x=30
x=30÷0.375
x=80