One possible answer is x ≠2.
Not unless you have an infinite amount of time as there are an infinite amount of numbers that are solutions to an inequality.
Inequalities tend to have infinitely many solutions.
Infinite.
None. -42 is a single integer, not an equation nor an inequality. So there are no solutions.
If you're given the inequality and the equation, then the way to prove that they have the same solution is to solve each one and show that the solutions are the same number. Don't strain yourself, though. An inequality and an equation never have the same solution.