Question 26724
2=n-(2n+3)=

2=n-2n-3(the negative in front of parenthesis, changes all signs)

then add 3 to both sides
2+3=n-2n-3+3

5=n-2n
5=-n
divide bothe sides by the negative
n=-5
If you replace the n with a negative 5 you wll see that this works!!