Question

if an Ap .if common different (d)=4.and the seven term a(7)is 4.Find the first twrm​

Answer 1

Answer:

-20

Step-by-step explanation:

A7=A+(7-1)4

4=a+24

A=-20

Hope it helps

Answer 2

Answer:

Step-by-step explanation:

d=4

a7=4

an=a+(n-1)d

a7= a + (7-1)x4

4 = a + 6x4

4 = a + 24

4-24 =a

a = -20