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## Homework Statement

Imagine two spherical planets fixed on the x-axis, one with mass M at the origin, and the other with identical mass M at the position x = +d. (Assume that d is much greater than the radius of either planet.) At what position along the x-axis between the two masses could you position yourself so that you would experience a net gravitational force of zero?

## Homework Equations

Fg = (Gm1m2) / r^2

## The Attempt at a Solution

I know that

Fg = (Gm1m2) / r^2

and since both masses are identical, then

Fg = (GMM) / d^2 = (GM^2)/ d^2

I've tried plugging in numerous values for d in which both would cancel out, but I can't seem to find a value. Could someone please help me? Any help would be greatly appreciated...