tayrmlawosn45 tayrmlawosn45

12-02-2020
Mathematics

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please help and thank you for all who helps

please help and thank you for all who helps class=

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HaQuangThang HaQuangThang

12-02-2020

Answer: JK+KL=JL <--> 4x+6+7x+15=120 <--> x=9

JK=4x+6=4.9+6=42

KL=7x+15=7.9+15=78

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