Consider the system of simultaneous equations:

x1 + 3x2 + 5x3 + 2x4 = 7

2x1 ? 4x2 + 7x3 ? 3x4 = ? 3

? 4x2 ? 7x3 + 3x4 = ? 1

5x1 ? 3x2 + 2x3 + 1x4 = 0

which in matrix notation we could write as mx = c.

(a) write two matlab assignment statements for the matrices that correspond to m and c in the

matrix notation indicated.

(b) what matlab statement would you use to solve this system of linear equations?

(c) type your statements into matlab and obtain the solution. what is the solution?

Write a function balancechemical to balance chemical reactions by solving a linear set of equations. the inputs arguments are: reagents: symbols of reagents in string row array products: symbols of products in string row array elements: elements in the reaction in string row array elcmpreag: elemental composition of reactants in two dimensional numeric array elcmpprdcts: elemental composition of prducts in two dimensional numeric array hint: the first part of the problem is setting up the set of linear equations that should be solve. the second part of the problem is to find the integers from the solution. one way to do this is to mulitiply the rational basis for the nullspace by increasing larger integers until both the left-and right-side integers exist. for example, for the reaction that involves reacting with to produce and : reagents=["ch4", "o2"]; products =["co2", "h2o"]; elements =["c","h", "o"] elcmpreag=[1,4,0;