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(4/9)*x-((8/3)*x)+2+8 = 0
(4/9)*x+(-8/3)*x+2+8 = 0
10-20/9*x = 0 // - 10
-20/9*x = -10 // : -20/9
x = -10/(-20/9)
x = 9/2
x = 9/2
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