Question

0.3+6X=2.1怎么验算？

Answer 1

0.3+6x＝2.1
6x＝2.1-0.3
6x＝1.8
x＝0.3
0.3+6*0.3＝0.3+1.8＝2.1

Answer 2

6x＝1.8，x＝0.3。验算:将x＝0.3代入方程中，0.3+6×0.3＝2.1。