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x in (-oo:+oo)
x/8 = 25.6 // - 25.6
x/8-25.6 = 0
1/8*x-25.6 = 0 // + 25.6
1/8*x = 25.6 // : 1/8
x = 25.6/1/8
x = 204.8
x = 204.8
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