The 7th and 12th terms of an AP are 46 and 71 respectively. Find the n

1.	The 7th and 12th terms of an AP are 46 and 71 respectively. Find the nth term of the AP
Answer» Sorry I think I did a mistake there should be a+(7-1)d=46=a+6d=46..1eq.,a+(12-1)d=71=a+11d=71.....2eq.Now if u will substract these two equation u will get the answer.. a+6(n-1)=46,a+11(n-1)=71Now substract these two equation,I hope you will get the answer... 6+(n-1)5 not sure about the answer.

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