04Mar 2018 EXISTENCE AND UNIQUENESS OF SOLUTIONS TO SYSTEM OF LINEAR EQUATIONS AND INTEGRAL EQUATIONS USING BANACH FIXED-POINT THEOREM. Razina Ferdausi , Akram Hossain , Mehedi Hasan and Ashraful Islam. Department of Mathematics, University of Dhaka, Dhaka-1000. Department of Mathematics, Jessore University of Science & Technology, Jessore-7408. Department of General Educational Development, Daffodil International University, Dhaka-1000. Department of Computer Science and Engineering, Dhaka International University, Dhaka-1000.