Hey there guys! Need some help with matrix. (matrix example attached) Really need help since don't understand so much of these topics!

Task.The 2 last numbers of student ID are given a,b . Choose 3 different number c, d and e, which are not equal to 0.

Choose 15 different positive or negative numbers, which have two or three numbers in decimals (for example, x=-12.017) and create linear equation system, by putting numbers chosen instead of the stars (rows mustn't be proportional)

Task_part_2Solve the equation system by both - Cramer and Gauss method. Compare results.