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(4/9)*x-1 = (5/9)*x+2 // - (5/9)*x+2
(4/9)*x-((5/9)*x)-2-1 = 0
(4/9)*x+(-5/9)*x-2-1 = 0
-1/9*x-3 = 0 // + 3
-1/9*x = 3 // : -1/9
x = 3/(-1/9)
x = -27
x = -27
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