Posted: 4/26/2012 5:11:34 PM EDT
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Linear equations, ladies and gentlemen. I used to know this stuff. If someone could just get me started by laying out the first step, I might remember. I know the answer is -15, I just can't remember how to get there.
5 ( x- 7 ) = 7x - 5 Halp! Halp! 
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Quoted:
5 ( x- 7 ) = 7x - 5 5x-35=7x-5 5x-30=7x -30=2x -15=x Thanks, dsg. i was trying to distribute the right side as well, forgetting you need parentheses for that. D'oh. Of course I remember now. Oh, and InfiniteGrim, not true. I used to be a whiz at these. We aren't going to say how long ago that's been though. |
