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5*(x-3) = 10*(x/2-3) // - 10*(x/2-3)
5*(x-3)-(10*(x/2-3)) = 0
5*(x-3)-10*(x/2-3) = 0
5*(x-3)-10*(1/2*x-3) = 0
5*(x-3)-10*(1/2*x-3) = 0
15 = 0
15 = 0
15 = 0
x belongs to the empty set
x belongs to the empty set
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