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The 8th term of a linear sequence is 18th and the 12th term is 26th .find the first term,common difference and the 20th term
asked by
Zainab

Your question does not make sense
"The 8th term of a linear sequence is 18th"
= gobbledegoop!
In any arithmetic (linear) sequence, the terms either increase or decrease. A term can never repeat itself
if you meant:
The 8th term of a linear sequence is 18 , we can do something
Correct your question, and we'll go from there.posted by Reiny

a+7d = 18
a+11d = 26
subtract them:
4d = 8
d = 2
in a+7d = 18
2+7d = 18
carry onposted by Reiny
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