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x in (-oo:+oo)
x/455 = 120/100 // - 120/100
x/455-(120/100) = 0
x/455-6/5 = 0
1/455*x-6/5 = 0 // + 6/5
1/455*x = 6/5 // : 1/455
x = 6/5/1/455
x = 546
x = 546
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