x-[(x-3500)*0.2-555]=9553求x=?_数学解答

x-[(x-3500)*0.2-555]=9553求x=?

人气：413 ℃　时间：2020-02-03 18:50:06

解答

x-[(x-3500)*0.2-555]=9553
x-[0.2x-700-555]＝9553
0.8x+1255=9553
0.8x=8298
x=10372.5