Consider the following network: B- А 6. (a) Write down a linear equation for the flows at each node and hence the corresponding augmented matrix for this system. (b) Find the reduced row echelon form showing all row operations and hence write down the corresponding solution. (c) With the requirement that all network flows r, y, z, w are non- negative, use your answer to (c) to determine the range of possible values for r, y, 2, w. 3. 2) 21

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Linear Algebra

In mathematics, problems can be solved by the arithmetic operators like addition, subtraction, multiplication, and division. In algebra, we represent the numbers by any letter called a variable. If these variables are of degree 1, then it is studied under linear algebra. The first-degree equations involving algebraic expressions are called linear equations. That is, if you represent it by drawing a graph you will get a straight line.