急需!急需!懂数学滴,都进!
来源:学生作业帮 编辑:搜搜做题作业网作业帮 分类:综合作业 时间:2024/07/26 01:58:03
急需!急需!懂数学滴,都进!
帮我化简,谢谢啦:
(3a+3b)+[3a+3b+(b-1)]+[3a+3b+(b-1)+2]
帮帮忙吧,各位GG,MM们~~~~~~~~~~~~~
帮我化简,谢谢啦:
(3a+3b)+[3a+3b+(b-1)]+[3a+3b+(b-1)+2]
帮帮忙吧,各位GG,MM们~~~~~~~~~~~~~
![急需!急需!懂数学滴,都进!](/uploads/image/z/18032334-6-4.jpg?t=%E6%80%A5%E9%9C%80%21%E6%80%A5%E9%9C%80%21%E6%87%82%E6%95%B0%E5%AD%A6%E6%BB%B4%2C%E9%83%BD%E8%BF%9B%21)
(3a+3b)+[3a+3b+(b-1)]+[3a+3b+(b-1)+2]
=3a+3b+3a+3b+(b-1)+3a+3b+(b-1)+2
=9a+9b+(b-1)+(b-1)+2
=9a+9b+b-1+b-1+2
=9a+11
=3a+3b+3a+3b+(b-1)+3a+3b+(b-1)+2
=9a+9b+(b-1)+(b-1)+2
=9a+9b+b-1+b-1+2
=9a+11