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5*x-(2/3) = 7*x+2/6+3 // - 7*x+2/6+3
5*x-(7*x)-(2/3)-(2/6)-3 = 0
5*x-7*x-2/3-1/3-3 = 0
-2*x-4 = 0 // + 4
-2*x = 4 // : -2
x = 4/(-2)
x = -2
x = -2
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