# 初等数论习题

### 多元线性同余方程解的个数

$$a^\prime x\equiv c^\prime-b^\prime y\pmod{m^\prime}.\tag{*}$$

## References

[1] Kenneth H. Rosen, Instructor's Solutions Manual for Elementary Number Theory and Its Applications, 6th ed, p. 57, 3.5.40, 2011, https://epdf.pub/instructors-solutions-manual-for-elementary-number-theory-and-its-applications-6.html.