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2*x-(8/9) = 4/(-2) // - 4/(-2)
2*x-(8/9)-(4/(-2)) = 0
2*x-8/9+2 = 0
2*x+10/9 = 0 // - 10/9
2*x = -10/9 // : 2
x = -10/9/2
x = -5/9
x = -5/9
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