Math, asked by ritikraj58, 1 year ago

how can solve it ???????????????????

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Answered by brunoconti

1

Answer:

Step-by-step explanation:

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Answered by 8191822

1

Answer:

Step-by-step explanation:

Let A be the first term and d be the common difference.

a27-a7= 84

A+(27-1)d -(A+(7-1)d)=84

A+26d-A-6d=84

20d=84

d=4.2

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