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(4/9)*x+4/9 = (-5/9)*x-(2/3) // - (-5/9)*x-(2/3)
(4/9)*x-((-5/9)*x)+4/9+2/3 = 0
(4/9)*x+(5/9)*x+4/9+2/3 = 0
x+10/9 = 0 // - 10/9
x = -10/9
x = -10/9
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