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OpenStudy (anonymous):
a - b = 4 2a -2b = 8 What is the answer please....
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OpenStudy (callisto):
infinitely many solutions as the 2 equations are the same
OpenStudy (callisto):
2a -2b = 8 => a-b=4
OpenStudy (hoblos):
multiply the first equation by 2 2a -2b =8 2a -2b = 8 they are the same equation though then we have infinity of solutions
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