The advanced techniques in operational research: the simplex method for business efficiency

Beauty salon is a type of business related to facial and hair care, for both men and women. This study aims to determine the profit of a business using the simplex method. The subject of this study is one of the hair salons located in Pontianak, Indonesia, namely Amanda Salon. The type of research conducted is qualitative research. Linear programming is a branch of mathematics applicable in daily life. It involves formulating mathematical models with linear equations to determine optimal solutions by maximizing or minimizing objective functions subject to a set of constraints. The result obtained by Amanda Salon using the simplex method and linear program solver, comparing the service of smoothing long and short hair, is Rp675,000 with 0 short hair smoothing and 9/8 long hair smoothing.