Question

求解同余方程.一共两题

Answer 1

3=3mod9

9=2mod7

3=3mod7

3*2+3=2mod7

3*9+3=30

30+63=93

x=93

2

11mod5=1

3mod5=3

4+3=2mod5

4*11+3=47

55=1mod3

2+47=1mod3

55*2+47=157

x=157