Question

If n =r+ 5 and r = 3, then n =

Answer 1

n = 8

Explanation:

n = r + 5

n = (3) + 5

n = 8

Answer 2

`\boxed {\tt n=8}`

Explanation:

We know that n is equal to r plus 5, or

`n=r+5`

We want to find n when r is equal to 3. Therefore, we must substitute 3 in for r.

`n=r+3 \ and \ r=3`

`n=5+3`

Add 5 and 3.

`n=8`

n is equal to 8 when r is equal to 3.