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(5/3)*x+(5/6)*x = 45/9 // - 45/9
(5/3)*x+(5/6)*x-(45/9) = 0
(5/3)*x+(5/6)*x-5 = 0
5/2*x-5 = 0 // + 5
5/2*x = 5 // : 5/2
x = 5/5/2
x = 2
x = 2
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