Matrices

Addition & Subtraction

5. Which of the following matrices is equal to

8. Which of the following augmented matrices represents the system of linear equations below? 3x + 5y = 20 2x— y= 9

8. Which of the following matrices is equal to ?

18. [ 10 -8 -13 11 ] − [ -9 -8 -17 14 ] = ?

26. What value of x satisfies the matrix equation below?

43. Given that for some real number a, what is x + z?