2a+3b-3a-5b+3,a=-1b=2

来源：学生作业帮助网编辑：六六作业网时间：2024/10/04 16:21:41

2a+3b-3a-5b+3,a=-1b=22a+3b-3a-5b+3,a=-1b=22a+3b-3a-5b+3,a=-1b=22a+3b-3a-5b+3=-a-2b+3=-(-1)-2×2+3=1-4

2a+3b-3a-5b+3,a=-1b=2
2a+3b-3a-5b+3,a=-1b=2

2a+3b-3a-5b+3,a=-1b=2
2a + 3b - 3a - 5b + 3
= -a - 2b + 3
= -(-1) - 2 ×2 + 3
= 1 - 4 + 3
= 0