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aleksklad [387]
3 years ago
5

Please help!!! Will Mark brainliest!!!

Mathematics
1 answer:
Studentka2010 [4]3 years ago
8 0

Answer:

9

Step-by-step explanation:

120=4x=6+7x+15

120=11x+21

-21         -21

99  ÷ 11x

AB=9

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