Question

Coisa simples ,resolva:
$304 = 2 + (n - 1).3$

Answer 1

304=2+(n−1).3 
304=2+3x-3
304+3-2=3x
305=3x
305/3=x

Answer 2

Vamos achar o valor de n.

304 = 2 + (n-1).3
304 = 2 + 3n - 3
304 + 1 = 3n
n = 305/3
n ≈ 101,667