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(1/4)*x+x+8/9 = 133/99 // - 133/99
(1/4)*x+x+8/9-(133/99) = 0
(1/4)*x+x+8/9-133/99 = 0
5/4*x-5/11 = 0 // + 5/11
5/4*x = 5/11 // : 5/4
x = 5/11/5/4
x = 4/11
x = 4/11
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