For the following constraints, describe the set of all x ∈ Z≥0 that satisfies them. Describe this set as a + bk : k ∈ Z≥0 , where a is smallest x satisfying the constraints, a + b is the next...

For the following constraints, describe the set of all x ∈ Z≥0 that satisfies them. Describe this set as a + bk : k ∈ Z≥0 , where a is smallest x satisfying the constraints, a + b is the next smallest, a + 2b is the next smallest, etc.

1.x mod 13 = 6 and x mod 19 = 2

2. x mod 21 = 3 and x mod 11 = 2

3.4 x mod 6 = 3 and x mod 7 = 3

4 x mod 5 = 4 and x mod 6 = 5 and x mod 7 = 2

5. x mod 5 = 4 and x mod 6 = 5 and x mod 7 = 3