If '1 * 2 + 3 = -1' and '2 * 3 + 4 = 2', then in the expression 'X * 4 + 2 = 22', what is the value of 'X'?

Assuming the given statements to be true, find which of the given conclusions is definitely true. Testbook Statement: C ≥ H F = C

If 'A' denotes 'addition', 'B' denotes 'multiplication', 'C' denotes 'subtraction', and 'D' denotes 'division', then what will be the value of the following expression? 483 D 23 A 93 C 16 B 4 C (15 B 2)