According to me your question does not make sense. You need to give other relationships between x and y to solve the problem (sort of like what I helped you solve yesterday).
For example:
X = -3 y= 12
x = -6 y= 24
Sort out the question and I'll help you solve it.
For example:
X = -3 y= 12
x = -6 y= 24
Sort out the question and I'll help you solve it.