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(9/2)*x-(5/2) = 49/2 // - 49/2
(9/2)*x-(5/2)-(49/2) = 0
(9/2)*x-5/2-49/2 = 0
9/2*x-27 = 0 // + 27
9/2*x = 27 // : 9/2
x = 27/9/2
x = 6
x = 6
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