Answer
$y^{2}$ -7
Work Step by Step
(-7$y^{2}$ + 5 ) - ( -8$y^{2}$ + 12 )
-7$y^{2}$ + 5 + 8$y^{2}$ - 12
( -7$y^{2}$ + 8$y^{2}$ ) + ( 5 - 12) combine like terms
$y^{2}$ - 7 simplify
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