Given a system of simultaneous linear equations (SLE), we can write it in the form A . @ = b where square matrix A consists of the coefficients in each equation, the column vector 2 contains nxn axl nx1 the vector of unknowns and the column vector b contains the vector of constants. We will call this as the standard form of the SLE. Consider the following example as an illustration. describes in matrix notation, system of simultaneous linear equations (SLE) with two unknowns which is 2 + 3y = 1 4x + 5y = 2. For the following system of SLE, write down the standard form. (a) 12x1 + 37 2 = 1470 151 + 17:2 = 1680. (b) 4x1 + 2 2 + 5x3 = 27 5x1 + 6:2 + 2x3 = 19 3x1 + 732 + 3x3 = 15. (c) 0.3Y + 150r - 252 = 0, 0.25Y - 220r - 176 = 0