解方程:8.9-2x=6.8
问题描述:
解方程:8.9-2x=6.8
答
8.9-2x=6.8
2x=8.9-6.8
2x=2.1
x=1.05
答
8.9-2x=6.8
2x=8.9-6.8
2x=2.1
x=1.05
答
x=21/20
答
x=1.15
答
8.9-2x=6.8
2x=8.9-6.8
2x=2.1
x=1.05
所以原方程的解为 x=1.05
答
8.9-2x=6.8
2x=8.9-6.8
2x=2.1
x=1.05