Question

The 7th term of an AP is -4 and its 13th term is -16. Then, the common difference is​

Answer 1

given a7=-4

a13=–16

to find d

I hope my answer might help you

Answer 2

Answer:

d = -2

Step-by-step explanation:

a7= -4

a13= -16

ATQ

a + 6d = -4.............1eq

a+ 12d = -16 ..............2eq

( 1eq- 2eq)

-6d = 12

d = 12/ -6

d=-2