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How many solutions for identical equations?

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Source: — Problem Solving |
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by palvarez » Sat Nov 14, 2009 11:58 am
2x + 2y =2
x + y = 1

Both are identical. They have infinite solutions of the form (k, 1-k) where k is a real number.

GMAT may test you for integer solutions with constraints on variables; in which case, you may end up with an unique solution.
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