In an Ap the common difference (d) is 4, and the seventh term (a7)is 4.then find the first term

In an Ap the common difference (d) is 4, and the seventh term (a7)is 4

1.	In an Ap the common difference (d) is 4, and the seventh term (a7)is 4.then find the first term
Answer» As a +6d=4Nd d=4Then, a+24=4a=-20