Adición y sustracción de fracciones con distintos denominadores

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This mathematics document contains three equations with variables and coefficients. The first equation is 62x + 12x^2 + 2x^3 = 10x^2, the second is 33x + 6x^2 + 2x^3 = 55, and the third is x + 3x^2 + 3x^3 = 1. It appears to be showing work to solve a system of equations.

*

+ + =

62 12 2 10 2
33 6 2 55
1 3 3 1
1
x3 x 5 = 60

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