If 2x + y = 23 and 4x - y = 19, then the values of у (5y = 2x) and 2 ch - are:
(A) 30, 5/7
(B) 31, -5/7
(C) 32, 5/7
(D) None of these.
i want detailed explanation
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c because y = 9and x = 7 do this is a qnswer
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