In an arithmetic progression the 22nd term is four times the 5th term while the 12th term is 12th more than 8th term.find the first term and the common difference

Answer 1

a+21d = 4(a+4d)
since a12 = a8+12, 4d=12
Now you can finish it off.

Answer 2

If the first term of an AP is 4 and common difference is -2, what is its 2nd term If the first term of an AP is 4 and common difference is -2, what is its 2nd term