The 10th term of an arithmetic progression is 68 and the common difference is 7 find first term of a sequence

Answer 1

How to solve it

Answer 2

d=7
a_10 = a+9d
so
a+63 = 68
a = 5

Answer 3

Thanks a lot

Answer 4

how did a is 5 a=5

Answer 5

The 10term of of arithmetic progression is 68 and the common difference is 7,find the first term born the sequence

Answer 6

The first term of a linear sequence is 5 and the common difference is -3,find the 15th term of the sequence