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2/5-((2/5)*x)+2/5 = 0
(-2/5)*x+2/5+2/5 = 0
4/5-2/5*x = 0 // - 4/5
-2/5*x = -4/5 // : -2/5
x = -4/5/(-2/5)
x = 2
x = 2
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