That's just not the case all the time. Sometimes it is best.george22 said:The first solution given to you is the best.
Maybe. If that appears to be advantageous.Whenver you are dealing with fractions, multiply the WHOLE equation by the denominator.
tkhunny said:Note to Student: Please don't get ONE method stuck in your head - not for ANYTHING. Keep your mind open. Always look around for simpler, more convenient, more useful, or more understandable results. Never, ever think you are clever if you know only one way to proceed.
Go ahead and learn how to work with fractions. You will be better for it.
7x - 3 15
-------- = ----
1 2
...evil even with a single variable to the power 1 :?:tkhunny said:...except "crisscross multiplication" It is evil. :evil: