Question

In an ap , if the common difference (d) = -4,and seventh term(a7) is 4 , then find the first term

Answer 1

hey mate here is your answer
please mark me as a brainliest

Answer 2

Common Difference = - 4

a7 = 4

nth term :-

an = a + (n - 1)d

a7 = a + (7 - 1)d

4 = a + 6(- 4)

a = 4 + 24

a = 28

First term = 28