Posted by Jmiah on October 11, 2002 at 11:28:04:
OK, here's the problem. I got one answer, my book got a different answer, and my calculator says both are wrong. Here's the equation:
1/8x-1/7x=2, solve for x
The book got:
My calculator got:
1/8x-1/7x=2, x=-112 (using q solver), when I substituted -112 for x, it came out equaling 2
I know the calculator is right, and I did find a way to get that answer, and I also see how I got my answer and the book got its answer, but I can't figure out what the book, or I, did wrong.
P.S. those are one-eighth and one-seventh x.
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