Question

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

Answer 1

d= -4
a7=4
a7=a+6d
4=a+6×-4
4=a-24
a=28

Answer 2

Hey mate !!!

here is your answer !!!

given that common DIFFERENCE => -4

and 7 th term => 4


therefore ,


4 = a + 6d

=> 4= a + 6 x -4


=> 4 = a -24


=> a = 28



hope it helps dear!!!


thanks