Which polynomial is equivalent to this expression if n≠-1n≠-1? 3+n−2n21+n?

Equivalent Polynomial of given polynomial is 3 - 2n.

Step-by-step explanation:

We are given following polynomial:

We have top find equivalent polynomial such that n ≠ -1

Consider,

Therefore, Equivalent Polynomial of given polynomial is 3 - 2n.

n=9

step-by-step explanation:

7 times a number = 7n

decreased by 13 = 7n-13

same as is =

5 times the number = 5n

increased by 5 = 5n+5

7n-13 = 5n+5

2n=18

n=9

$79500

step-by-step explanation: