The masses m, are located at the points P₁. Find the moments Mx and My and the center of mass of the system. m₁ = 6₁ m₂ = 5, m3 = 4, m4 = 7; P₁(6, 4), P₂(3, -1), P3(-2, 2), P4(-2,-5) Mx My (x, y) = = =

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