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(1/5)*x+2 = 73/40 // - 73/40
(1/5)*x-(73/40)+2 = 0
(1/5)*x-73/40+2 = 0
1/5*x+7/40 = 0 // - 7/40
1/5*x = -7/40 // : 1/5
x = -7/40/1/5
x = -7/8
x = -7/8
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