The problem statement, all variables and given/known data M1 is a spherical mass (47.4 kg) at the origin. M2 is also a spherical mass (19.9 kg) and is located on the x-axis at x = 69.6 m. At what value of x would a third mass with a 10.5 kg mass experience no net gravitational force due to M1 and M2? The attempt at a solution https://mail.google.com/mail/?ui=2&ik=2ce981a95c&view=att&th=1338feddbcf78489&attid=0.1&disp=inline&realattid=f_guuf8isl0&zw I think I'm on the right track, but I'm not really sure. And I'm not 100% sure how to simplify what I have. Any advice would be much appreciated.