8. The weight of a vehicle is supported by reaction forces at its front and rear wheels as shown in the figure below. If the weight of the vehicle is 2400kg, the reaction forces R₁ and R₂ satisfy the following system of equations (equilibrium of forces and moments): R₁ R₁ + R₂ = 2400 6R₁ = 4R₂. W (a) Write the system of equations above in the matrix form AR = b, where R₁ R = R₂ R2 (b) Find R₁ and R₂ by using Gaussian elimination on the augmented matrix. (c) Find R₁ and R₂ using the matrix inverse A-¹.

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