Equation step-by-step:
4n - 18 = 52 → we take -18 to the right side of the equation
4n = 52 + 18 → we solve for 52 + 18
4n = 70 → we take 4 to the right side of the equation
n = 70 / 4 → we solve for 70 / 4
n = 17,5 → final answer
Hope it helped,
BioTeacher101