SOLUTION: Find the solution to the equations. 2x - y = -3 x + y = 0 (0, 0) (-1, 1) (1, -1)

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Question 1142353: Find the solution to the equations.
2x - y = -3
x + y = 0
(0, 0)
(-1, 1)
(1, -1)
Answer by math_helper(2461) About Me  (Show Source):
You can put this solution on YOUR website!
Since you are given three choices, you can just plug in the values...
Example (0,0) --> x=0, y=0: +2x+-+y+=+2%280%29-0+=+0+%3C%3E+-3+ so (0,0) is NOT a solution.

Do the same for the other two choices, one of them should work.

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Another approach...



Solve the system directly:

2x - y = -3    (1)

x + y = 0      (2)



Adding these equations eliminates 'y':

3x = -3 

 x = -1  -->  y = 1    Hence (-1,1) is a solution



There you have it.