6.8x+2x=49怎么解啊
问题描述:
6.8x+2x=49怎么解啊
答
6.8x+2x=49
2x=49-6.8
2x=42.2
x=21.1
6.8x+2x=49怎么解啊
6.8x+2x=49
2x=49-6.8
2x=42.2
x=21.1