5x一4.5=3x十5.
问题描述:
5x一4.5=3x十5.
答
5x一4.5=3x十5.5
5x-3x=5.5十4.5
2x=10
x=5
5x一4.5=3x十5.
5x一4.5=3x十5.5
5x-3x=5.5十4.5
2x=10
x=5