If the system of equations 2x + 3y = 7 and 2px + (p + q)y = 28 has infinitely many solutions, then
a) p = 2q
b) p + 2q = 0
c) q = 2p
d) q + 2p = 0
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Answer:
a )
I hope it is useful .
because I am just guessded .
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