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I divided the scale reading 2.79 N by 9.81 m(gravity) to find the total mass. I got 0.2844036697. I did this because the scale reading should be equal to the gravitation force (so I think).

Then I took the equation m1x1=m2x2. I used 0.875m for x1 and .125m for x2. I solved for m2. Then I used m1 + m1(7) = 0.2844036697 to find m1. Which I got 0.0305 which isn't right. Please tell me where I went or if I"m on the right track. If not please give me the formulas you used. Thank You.