Question 18425
{{{x*(1/2)=225}}}
divide both sides by 1/2
{{{x*(1/2)/(1/2)=225/(1/2)}}}
becomes {{{x=225/(1/2)}}}
applying the inverse property of fractions, 
this becomes {{{x=225*(2/1)}}}
which simplifies to {{{x=225*2}}}
giving the solution {{{x=450}}}