Answer:
Step-by-step explanation:
METHOD 1
[tex]n+7=15\\n =15-7\\n = 8[/tex]
METHOD 2
[tex]n+7-7=15-7\\n =8[/tex]
Subtract 7 from both sides.
Step 1:
n = 15 - 7
n = 8
Hope This Helps :)