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x in (-oo:+oo)
4*x-(8/5) = 16 // - 16
4*x-(8/5)-16 = 0
4*x-8/5-16 = 0
4*x-88/5 = 0 // + 88/5
4*x = 88/5 // : 4
x = 88/5/4
x = 22/5
x = 22/5
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