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(2/3)*x-(41/2) = 8 // - 8
(2/3)*x-(41/2)-8 = 0
(2/3)*x-41/2-8 = 0
2/3*x-57/2 = 0 // + 57/2
2/3*x = 57/2 // : 2/3
x = 57/2/2/3
x = 171/4
x = 171/4
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