Question 892484
{{{16^(d-4)=3^(3-d)}}}
{{{(d-4)ln(16)=(3-d)ln(3)}}}
{{{ln(16)d-4ln(16)=3ln(3)-ln(3)d}}}
{{{ln(16)d+ln(3)d=3ln(3)+4ln(16)}}}
{{{d(ln(16)+ln(3))=3ln(3)+4ln(16)}}}
{{{d=(3ln(3)+4ln(16))/(ln(16)+ln(3))}}}
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{{{9^x=45}}}
{{{x*ln(9)=ln(45)}}}
{{{x=ln(45)/ln(9)}}}
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{{{42=760(1/2)^(h/4795)}}}
{{{42/760=(1/2)^(h/4795)}}}
{{{ln(42/760)=(h/4795)ln(1/2)}}}
{{{h/4795=ln(42/760)/ln(1/2)}}}
{{{h=4795*(ln(42/760)/ln(1/2))}}}
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{{{8=6.72(1.014)^(X0)}}}
{{{8/6.72=1.014^(X0)}}}
{{{ln(8/6.72)=X0*ln(1.014)}}}
{{{X0=ln(8/6.72)/ln(1.014)}}}