Math, asked by 1meowing, 1 month ago

SOLVE IT I WILL MARK AS BRAINLIEST. DON'T DOST IRREVELENT ANSWERS THEY WILL BE REPORTED.​

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Answered by da3229838
1

Answer:

6x+7x+8x=420

21x=420

x=420/21

20

120..140..160....

so 160 is the longest

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