Question

(i) Find the least positive value of x such that 67 + x =l(mod 4).
(ii) Solve 5x = 4(mod 6)​

Answer 1

Step-by-step explanation:

1)67+x-1=(mod 4)

66+x=mod4

66+2=mod 4

The value of x is equal to 2,2+4=6,....

So the answer is 2,6,10....

2) 5x-4=mod6

5(2)-4=mod6

But the value of x must be greater than 4 so the answer is 2,48,14