Question 1135200
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            I just solved this problem at this forum couple of days ago under this link


<A HREF=https://www.algebra.com/algebra/homework/word/finance/Money_Word_Problems.faq.question.1135082.html>https://www.algebra.com/algebra/homework/word/finance/Money_Word_Problems.faq.question.1135082.html</A>


https://www.algebra.com/algebra/homework/word/finance/Money_Word_Problems.faq.question.1135082.html



&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;> > > <U>in much simpler way</U>. < < <



For your convenience, I copy and paste here that my solution AGAIN


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<pre>
{{{(x+21)^2}}} = 144  ===============> which implies two consequences to be considered:


a)  x+21 = {{{sqrt(144)}}} = 12  ====>  x = 12 - 21 = -9.


b)  x+21 = {{{-sqrt(144)}}} = -12  ====>  x = -12 - 21 = -33.


<U>ANSWER</U>.  The problem has TWO SOLUTIONS. They are the numbers -9 and -33.
</pre>

Answered and solved.