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x in (-oo:+oo)
(2/3)*(3*x+8) = 8*x // - 8*x
(2/3)*(3*x+8)-(8*x) = 0
(2/3)*(3*x+8)-8*x = 0
2/3*(3*x+8)-8*x = 0
2/3*(3*x+8)-8*x = 0
16/3-6*x = 0
16/3-6*x = 0
16/3-6*x = 0 // - 16/3
-6*x = -16/3 // : -6
x = -16/3/(-6)
x = 8/9
x = 8/9
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