Abstract. This paper analyzes a linear system of equations when the righthand side is a fuzzy vector and the coefficient matrix is a crisp M-matrix. The fuzzy linear system (FLS) is converted to the equivalent crisp system with coefficient matrix of dimension 2n × 2n. However, solving this crisp system is difficult for large n because of dimensionality problems . It is shown that this difficulty may be avoided by computing the inverse of an n × n matrix instead of Z−1 .
