5a+2-4a=0,a等于几?

来源：学生作业帮助网编辑：作业帮时间：2024/05/09 23:46:04

5a+2-4a=0,a等于几?
5a+2-4a=0,a等于几?

5a+2-4a=0,a等于几?
5a+2-4a=0
5a-4a=-2
a=-2

5a+2-4a=0
5a-4a=-2
a=-2

5a-4a+2=0
5a-4a=-2
a=-2

a+2=0
a=-2