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0.2 = 2*x-(5*((2*x)/100))-x // - 2*x-(5*((2*x)/100))-x
5*((2*x)/100)-(2*x)+x+0.2 = 0
5*((2*x)/100)-2*x+x+0.2 = 0
0.2-9/10*x = 0 // - 0.2
-9/10*x = -0.2 // : -9/10
x = -0.2/(-9/10)
x = 0.22222222
x = 0.22222222
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