+ = 14 + + - = 10 = = 15. 16 How to make all these 4 equations true. Side ways and up down

The answer would be d i think but i’m for sure it is not a and c

This is what i found “an explicit formula designates the nth term of the sequence, as an expression of n (where n = the term's location). it defines the sequence as a formula in terms of n. this example is an arithmetic sequence(the same number, 5, is added to each term to get to the next term).” i hope this you for what your looking for. can you plz mark me brainliest?