4x-2.4+3=25.6
问题描述:
4x-2.4+3=25.6
答
4x-2.4+3=25.6
4x=25.6+2.4-3
4x=25
x=25/4
4x-2.4+3=25.6
4x-2.4+3=25.6
4x=25.6+2.4-3
4x=25
x=25/4