Using linear programs, we give the necessary and sufficient conditions for the solvability of a fuzzy LR algebraic linear system. Fuzzy LR algebraic linear systems are linear systems with LR fuzzy coefficient matrix and an LR fuzzy vector as the right-hand side. We consider an approximate solution when the fuzzy LR algebraic linear system lacks a solution. Also, we propose a linear programming problem to compute a solution or an approximate solution of a fuzzy LR algebraic linear system. Finally, by numerical examples, we show the suitability of our proposed approximate solution in comparison with another proposed approximate solution.

Keywords