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12*((5-(2*x))/8) = 0
12*((5-2*x)/8) = 0
(12*(5-2*x))/8 = 0
( 12 )
12 = 0
x belongs to the empty set
( 5-2*x )
5-2*x = 0 // - 5
-2*x = -5 // : -2
x = -5/(-2)
x = 5/2
x = 5/2
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