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x in (-oo:+oo)
(5/9)*(x-32) = -62.1 // + 62.1
(5/9)*(x-32)+62.1 = 0
5/9*(x-32)+62.1 = 0
5/9*(x-32)+62.1 = 0
5/9*x+44.32222222 = 0
5/9*x+44.32222222 = 0
5/9*x+44.32222222 = 0 // - 44.32222222
5/9*x = -44.32222222 // : 5/9
x = -44.32222222/5/9
x = -79.77999936
x = -79.77999936
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