Problem 7: 1. Formulate a system of linear equations that allows one to find all forces, R1,, R2 and F., Fo in the statically determined truss given in the figure below. 2. Re-write this SLE in the matrix form AX = b. 3. Solve the SLE with linsolve function in MATLAB. 4. Report should include the original SLE, matrix A, vector b, and values of forces. 5. Other examples of similar problems are given on page 130 in Gilat's book. F. 11 F7 F 4 9 W = 10000 N (mass ~ 1000 kg)