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x in (-oo:+oo)
x/5 = 13/11 // - 13/11
x/5-(13/11) = 0
x/5-13/11 = 0
1/5*x-13/11 = 0 // + 13/11
1/5*x = 13/11 // : 1/5
x = 13/11/1/5
x = 65/11
x = 65/11
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