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X 1 3 x
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X 1 3 x
x 1 3 x 1 15
x 1 3 x 12
x 1 3 x u2212 3 5 2
x 1 3 x 0
x 1 3 x 1 3 2x 3
x 1 3 x 1 3 simplify
x 1 3 x 1 2 2x 2
x 1 3 x 3 5
x 1 3 x 2
x 1 3 x
