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3 votes
Ac=2(5a+1)
Bd=2(a+1)

User Dhofstet
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2(5a+1)=2(a+1) 10a+5=2a+2 (10a-2a)+5=(2a-2a)+2 8a+5=2 8a+(5-5)=(2-5) 8a=-3 a=-3/8
User Deck
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