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(2/3)*(2/5-(5*x))-(3/5) = 2/5 // - 2/5
(2/3)*(2/5-(5*x))-(3/5)-(2/5) = 0
(2/3)*(2/5-5*x)-3/5-2/5 = 0
2/3*(2/5-5*x)-3/5-2/5 = 0
(2/3*5*(2/5-5*x))/5-3/5-2/5 = 0
2/3*5*(2/5-5*x)-3-2 = 0
-50/3*x-2-5/3 = 0
-50/3*x-11/3 = 0
(-50/3*x-11/3)/5 = 0
(-50/3*x-11/3)/5 = 0 // * 5
-50/3*x-11/3 = 0
-50/3*x-11/3 = 0 // + 11/3
-50/3*x = 11/3 // : -50/3
x = 11/3/(-50/3)
x = -11/50
x = -11/50
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