8xy+7xy+10-4xy +6xz-4
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3
Answer:
8xy+7xy-4xy+10-4+6xz
=11xy+6+6xz
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6
8xy+7xy+10-4xy+6xz-4
15xy+10-4xy+6xz-4
11xy+10-4+6xz
11xy+6+6xz
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