exam Maths Puzzle Numerical Ability

Can you help me solve this Using augmented matrices to solve the following 2 x 2 systems of equations. Show all work.

1. 3x + 4y = 11
x + 3y = 2

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exam Other Question

How do you multiply and divide positive and negative numbers? A number minus two is equal to that number times the reciprocal of two. What is the number? I know it sounds easy but I am STUCK on it!!