Any hints on where I went wrong?

When checking the solution in the original equation, I got the false answer of:

Printable View

- Mar 4th 2006, 07:55 AMEuclid Alexandria12 = 11x - 14x
Any hints on where I went wrong?

When checking the solution in the original equation, I got the false answer of:

- Mar 4th 2006, 08:19 AMCaptainBlackQuote:

Originally Posted by**Euclid Alexandria**

so -14(-4)=-(-56)=+56

RonL - Mar 5th 2006, 03:54 AMtopsquarkQuote:

Originally Posted by**Euclid Alexandria**

-Dan - Mar 7th 2006, 11:04 AMEuclid AlexandriaOk, thanks guys.
The reason I became confused is, in simplifying equations like

I thought we were supposed to treat the negative sign in the middle as a subtraction sign. I thought we were to solve the two multiplication problems first, then subtract. I could swear I've seen situations that were similar enough in that vein, to confuse me about*this*situation. If that's the case, I need to learn to tell the difference.

Thankfully, at least the variable was correct this time, so I'm improving. - Mar 7th 2006, 12:45 PMtopsquarkQuote:

Originally Posted by**Euclid Alexandria**

When I was learning this my teacher always insisted that we write expressions like as . That way you never have to worry about whether or not you are adding or subtracting...you are ALWAYS adding.

Hope it helps!

-Dan - Mar 8th 2006, 05:45 PMEuclid AlexandriaThanks for the tip.
I was doing this for a while, but have been trying to wean myself off of it. I still use it for larger problems, but might continue sticking with it for a while in every case.

Btw, I finally noticed my error while resolving that equation, so disregard my previous post! - Mar 9th 2006, 04:32 AMtopsquarkQuote:

Originally Posted by**Euclid Alexandria**

-Dan