UMM HOW DO I DO THIS click the picture HELP ME

Answer:
we need more information or its impossible
but the with the given info I would say y+6=x
Step-by-step explanation:
so 4+6=10 and 1+6=7 and 7+6=13 and 9+6=15
it can also be y×2.5=x
so 4×2.5=10 and etc