Solve the inequation −2 ≤ (1 − 3x)/4 ≤ 3 for real x and represent the solution on a number line.

Solve 3x − 2 > 7 and 2x + 1 < 15 simultaneously, x being a natural number, and write the solution set.

Solve −4 < 2x − 6 ≤ 4 where x is an integer, and write the solution set.

Solve 3x − 5 < 7 where x is a natural number, and write the solution set.

Solve 5 − 2x ≥ 1 and represent the solution on a number line, x being a real number.

Solve 2x + 3 ≥ 9 where x is a whole number, and write the solution set.

Solve the inequation (2x − 1)/3 ≤ (x + 2)/2 where x is a real number.