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x in (-oo:+oo)
x/5 = 0.04 // - 0.04
x/5-0.04 = 0
1/5*x-0.04 = 0 // + 0.04
1/5*x = 0.04 // : 1/5
x = 0.04/1/5
x = 0.2
x = 0.2
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