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x-(((3/(-5))*x)/4) = 5*x-(4/3)+1 // - 5*x-(4/3)+1
x-(((3/(-5))*x)/4)-(5*x)+4/3-1 = 0
x+(3/20)*x-5*x+4/3-1 = 0
1/3-77/20*x = 0 // - 1/3
-77/20*x = -1/3 // : -77/20
x = -1/3/(-77/20)
x = 20/231
x = 20/231
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