Question

4n-2(h+7)=2n-2(n-1)
Пооооооомогите прошшу

Answer 1

4n-2n-14=2n-2n+2
2n=16
n=8

Answer 2

$4n - 2(n + 7) = 2n - 2(n - 1) \\ 4n - 2n - 14 = 2n - 2n + 2 \\4n - 2n = 16 \\ 2n = 16 \\ n = 8$