Question 1205995
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When the expression is written partly in words and partly in math symbols, different interpretations are possible....<br>
{{{root(3,x)+a=b}}}
{{{root(3,x)=b-a}}}
{{{x=(b-a)^3}}}<br>
Furthermore, note that, technically, we have no idea what x is, because the expression as you show it involves X and not x.<br>
It is very possible that in a given problem X and x, or R and r, represent different quantities.<br>
It is poor practice to mix capital and lower case letters when they represent the same quantity.<br>