Can someone help? This is sooooo hard!!

Answer:
[tex](-7, -6)[/tex]
Step-by-step explanation:
Use the definition of midpoint:
[tex]M=(\frac{x_{1}+x_{2} }{2},\frac{y_{1}+y_{2} }{2} )[/tex]
And replace the known values in:
[tex](-1, -2)=(\frac{5+x_{2} }{2}, \frac{2+y_{2} }{2} )\\(-7, -6)=(x_{2} , y_2)[/tex]
Short and neat :)