8000(1 +x%)=89751 +x%=8975/8000x%=1.121875-1x%=0.121875x=12.1875
8000(1 +x%)=89758000+80x=897580x=975x=975/80 =195/16
感觉你的写法好像有问题,这个能解,但估计不是你要的答案,我算了两个,你自己看
8000(1 +x%)=8975x=(8975/8000-1)*100=12.1875
8975÷8000=1+x%=1.121875x=12.875