math

i need help with this problem:2x-y=-4
-x-y=5
when you answer this question can you plz include the steps you did to get the final answer?

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asked by asha
  1. A way to solve this type of problem:
    First express one of the variables in terms of the other.
    -x-y = 5
    or, y = -5-x
    Now substitute that value for y into the other equation.
    2x -(-5-x)=-4
    Solve for x, then substitute the known x value into either equation to solve for y.

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  2. Subtract the second equation from the first.

    3x = -9
    x = -3

    y = -x -5 = -2

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    posted by drwls

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