Question

if 7th term of a sequence is 4 and the difference between each term is -4 then what is the first term​

Answer 1

Answer:

a7 = 4

d= -4

a7 = a + 6d

4 = a + 6*-4

a= 4 - (-24)

a= 4+24 = 28 .....

follow me for more help ...