4x-(x-6)=7(a-b)-(-4a=3b)
问题描述:
4x-(x-6)=
7(a-b)-(-4a=3b)
答
3x+6
11a-10b
答
4x-(x-6)
=4x-x+6
=3x+6
7(a-b)-(-4a+3b)
=7a-7b+4a-3b
=11a-10b
不懂可追问,有帮助请采纳,谢谢!