what is the solution of the following system?
{-2x-y=1
{-4x-2y=1
A infinitely many solutions
B no solution
C (3,8)
D (-3,-8)

Question

what is the solution of the following system?
{-2x-y=1
{-4x-2y=1
A infinitely many solutions 
B no solution 
C (3,8)
D (-3,-8)

uri · Answer

Did you try solving it?

anonymous · Answer

yes i did but i dont think i did it right

uri · Answer

Did you solve this using elimination method? Well,Show your work.

anonymous · Answer

okay well i did it by multiplying 2 from -2x-y=1 
which would get  -4x-2y=2
                      - { -4x-2y=-1
                       = -8x-4=3 
                           -8x=7
                            x= -8/7

uri · Answer

I would say B cuz.
-2x-y=1(multiply by -2 to make it positive)
-4x-2y=1

So,
4x+2y=-1
-4x-2y=1
========

Everything will be cancelled...so yeah.

anonymous · Answer

okay thank you very much

uri · Answer

Yw :)