Question

Arithmetic progression
an=a+(n-1)*d
An=-5, a=?, d=-3, n=18

Answer 1

Answer:

a=46

Step-by-step explanation:

An=a+(n-1)×d

-5=a+(18-1)(-3)

-5=a+(17)(-3)

-5=a-51

-5+51=a

a=46

Answer 2

Answer:

a=46✔✔

Step-by-step explanation:

An= -5 ; d= -3 ; n=18 ; a=?

An=a+(n-1)×d

-5=a+(18-1)×(-3)

-5=a+(-51)

a=-5+51

a=46✔✔