Answer:
Step-by-step explanation:
30= - 1/2(6n+4)+5n
Multiple each term by 2
2(30) = 2{- 1/2(6n+4)+5n}
60 = -1(6n+4) + 10n
60 = -6n - 4 +10n
Collecting like terms
60+4 = -6n+10
64 = 4n
n = 64/4
n = 16
