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Simplify the expressions by adding like terms -xy+9-7x-9xy+7?

 Aug 20, 2014

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 #1
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-xy+9-7x-9xy+7=(-xy-9xy)+(9+7)+(-7x)=-10xy+16-7x

If you teacher wants it in standard form it's:

-10xy-7x+16

 Aug 20, 2014
 #1
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+5
Best Answer

-xy+9-7x-9xy+7=(-xy-9xy)+(9+7)+(-7x)=-10xy+16-7x

If you teacher wants it in standard form it's:

-10xy-7x+16

Guest Aug 20, 2014

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