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(4/3)*x+(2/6)*x = 50/6 // - 50/6
(4/3)*x+(2/6)*x-(50/6) = 0
(4/3)*x+(2/6)*x-25/3 = 0
5/3*x-25/3 = 0 // + 25/3
5/3*x = 25/3 // : 5/3
x = 25/3/5/3
x = 5
x = 5
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