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(2/3)*x+8/9 = (1/9)*x+45 // - (1/9)*x+45
(2/3)*x-((1/9)*x)+8/9-45 = 0
(2/3)*x+(-1/9)*x+8/9-45 = 0
5/9*x-397/9 = 0 // + 397/9
5/9*x = 397/9 // : 5/9
x = 397/9/5/9
x = 397/5
x = 397/5
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