x十5十x十6…=1000
问题描述:
x十5十x十6…=1000
答
2x+11=1000
2x=1000-11
2x=989
x=989÷2
x=494.5
x十5十x十6…=1000
2x+11=1000
2x=1000-11
2x=989
x=989÷2
x=494.5