Question 1094912
<br>Tutor ikleyn posts some very good responses to questions; however, she is highly prejudiced about the "right" way to work problems.  The method suggested by josgarithmetic is NOT, as ikleyn says, a road to nowhere.<br>
In fact, if you are solving the problem using matrices to solve a system of linear equations, the method suggested by josgarithmetic is exactly the way to go.<br>
On the other hand, if you are solving the problem using algebra with pencil and paper, I would definitely go with the one-variable method shown by ikleyn.