In reverse: 63 - 1 = 2n = 62
62 / 2 = 31
Now as the question: (2 x 31) + 1 = 62 + 1 = 63
Q.E.D.
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63 +99 ___ 162
63 plus 47 plus 42 plus 21 is equal to 173.
63
y = 304, just add 63 to each side
(3x - 7)(2x + 9) = 0 x = 7/3 or -9/2