Simplify -6y^2+5y+7+(-9y-6y+6)-(6y^2-9y-9)

Math
-6y2+5y+7+(-9y-6y+6)-(6y2-9y-9)
Remove parentheses.
-6y2+5y+7-9y-6y+6-(6y2-9y-9)
Simplify each term.
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Apply the distributive property.
-6y2+5y+7-9y-6y+6-(6y2)-(-9y)–9
Simplify.
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Multiply 6 by -1.
-6y2+5y+7-9y-6y+6-6y2-(-9y)–9
Multiply -9 by -1.
-6y2+5y+7-9y-6y+6-6y2+9y–9
Multiply -1 by -9.
-6y2+5y+7-9y-6y+6-6y2+9y+9
-6y2+5y+7-9y-6y+6-6y2+9y+9
-6y2+5y+7-9y-6y+6-6y2+9y+9
Simplify by adding terms.
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Combine the opposite terms in -6y2+5y+7-9y-6y+6-6y2+9y+9.
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Add -9y and 9y.
-6y2+5y+7-6y+6-6y2+0+9
Add -6y2+5y+7-6y+6-6y2 and 0.
-6y2+5y+7-6y+6-6y2+9
-6y2+5y+7-6y+6-6y2+9
Subtract 6y2 from -6y2.
-12y2+5y+7-6y+6+9
Subtract 6y from 5y.
-12y2-y+7+6+9
Simplify by adding numbers.
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Add 7 and 6.
-12y2-y+13+9
Add 13 and 9.
-12y2-y+22
-12y2-y+22
-12y2-y+22
Simplify -6y^2+5y+7+(-9y-6y+6)-(6y^2-9y-9)

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