Solve the system. 0.8x + y = -9.6 0.2x - 0.3y = 2 a) (-6,0) b) (-12,0) c) (-2,-8) d) (8,-16)

For this set of equations you're going to want to use a process called elimination. In short you can multiply the entire second equation by negative four

-4 (0.2x - 0.3y = 2)

and in turn your equations will now look as follows.

0.8x + y = -9.6
-0.8x + 1.2y = -8

now you may add these two equations together which will leave you with

2.2y = -17.6

divide by 2.2 and then you will end up with

y= -8

and since only one of these answers has a negative 8 as y is can be said that

C. (-2,-8) is the correvt answer.