x-[(x-3500)*0.2-555]=9553求x=?
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x-[(x-3500)*0.2-555]=9553求x=?x-[(x-3500)*0.2-555]=9553求x=?x-[(x-3500)*0.2-555]=9553求x=?x-[(x-3500)*0
x-[(x-3500)*0.2-555]=9553求x=?
x-[(x-3500)*0.2-555]=9553求x=?
x-[(x-3500)*0.2-555]=9553求x=?
x-[(x-3500)*0.2-555]=9553
x-[0.2x-700-555]＝9553
0.8x+1255=9553
0.8x=8298
x=10372.5
先展开：
0.8x+700-555=9553
x=11760
x-[(x-3500)×0.2-555]=9553
X-(x/5-700-555)=9553
x-x/5=9553-1255
4x/5=8298
x=8298×5/4
x=10372.5