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(2/3)*x-3 = 4*x-(3/4) // - 4*x-(3/4)
(2/3)*x-(4*x)+3/4-3 = 0
(2/3)*x-4*x+3/4-3 = 0
-10/3*x-9/4 = 0 // + 9/4
-10/3*x = 9/4 // : -10/3
x = 9/4/(-10/3)
x = -27/40
x = -27/40
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