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(1/5)*(4*x-6) = 0
1/5*(4*x-6) = 0
( 1/5 )
1/5 = 0
x belongs to the empty set
( 4*x-6 )
4*x-6 = 0 // + 6
4*x = 6 // : 4
x = 6/4
x = 3/2
x = 3/2
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