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2-((2/5)*x) = 5/4-((1/4)*x) // - 5/4-((1/4)*x)
(1/4)*x-((2/5)*x)-(5/4)+2 = 0
(-2/5)*x+(1/4)*x-5/4+2 = 0
3/4-3/20*x = 0 // - 3/4
-3/20*x = -3/4 // : -3/20
x = -3/4/(-3/20)
x = 5
x = 5
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