Question

15+n=-9 answer first and u will be the top one .

Answer 1

Explanation:

15+n=-9

n=-9-15

n=-24

=-24

Answer 2

`n=-24`

Explanation:

`15+n=-9`

Simplify both sides:

`n+15=-9`

Subtract 15 from both sides:

`n+15-15=-9-15\\n=-24`

n = -24 is your final answer!