Simplify the expression and evaluate for y = -2
3y ( 2y - 7 ) - 3 ( y - 4 ) - 63
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» 3y (2y - 7) - 3 (y - 4) - 63
= 3 (-2) [2 (-2) - 7] - 3 (-2 - 4) - 63
= -6 (-11) - 3 (-6) - 63
= 66 + 18 - 63
= 21
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