Question 190034
So you're trying to get {{{d/b=c/a}}} from {{{a/b=c/d}}}???

 


{{{a/b=c/d}}} Start with the given equation
 


{{{d(a/b)=cross(d)(c/cross(d))}}} Multiply both sides by "d"



{{{(ad)/b=c}}} Simplify



{{{(cross(a)*d)/(cross(a)*b)=c/a}}} Divide both sides by "a"



{{{d/b=c/a}}} Simplify