Add 7ab+4ac-2bc,2ab-3ac+6abc
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Answer:
9ab-2ab+ac+6abc
Step-by-step explanation:
(7ab+4ac-2bc) + (2ab-3ac+6abc)
= 7ab+4ac-2bc+2ab-3ac+6abc
= 7ab+2ab-2bc+4ac-3ac+6abc
= 9ab-2ab+ac+6abc
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