a-b+c=0 c=-3 4a+3b+c=-3
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/12 08:19:33
![a-b+c=0 c=-3 4a+3b+c=-3](/uploads/image/z/12880085-5-5.jpg?t=a-b%2Bc%3D0+c%3D-3+4a%2B3b%2Bc%3D-3)
x)KMN5PH5V0I6qumq C155m45<4`.P)2hD5Pq//~o:H[K}s0+V/.H̳9 B@
a-b+c=0 c=-3 4a+3b+c=-3
a-b+c=0 c=-3 4a+3b+c=-3
a-b+c=0 c=-3 4a+3b+c=-3
c=-3
a-b+c=0
a-b-3=0
a-b=3 (1)
4a+3b+c=-3
4a+3b-3=-3
4a+3b=0 (2)
(1)(2)联立解得
a=9/7
b=-12/7