Answer:
n = 2
Explanation:
(n - 4) - 3 = 3 - (2n + 3) ← distribute parenthesis on both sides
n - 2 - 3 = 3 - 2n - 3 ( simplify both sides )
n - 5 = - 2n ( multiply through by 2 to clear the fraction )
n - 10 = - 4n ( add 4n to both sides )
5n - 10 = 0 ( add 10 to both sides )
5n = 10 ( divide both sides by 5 )
n = 2