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7/4-((2*x)/5) = x/2-(1/3) // - x/2-(1/3)
7/4-((2*x)/5)-(x/2)+1/3 = 0
(-2/5)*x-(x/2)+7/4+1/3 = 0
25/12-9/10*x = 0 // - 25/12
-9/10*x = -25/12 // : -9/10
x = -25/12/(-9/10)
x = 125/54
x = 125/54
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