Saturday, November 23, 2013

Solvbe: 1/5 + 1/x = 1/8


1%2F5+%2B+1%2Fx+=+1%2F8
moving terms...

1%2F5+-1%2F5%2B+1%2Fx+=+1%2F8-1%2F5

common denominator...
1%2Fx=%281%2F8%29%285%2F5%29-%281%2F5%29%288%2F8%29

1%2Fx=5%2F40-8%2F40

1%2Fx=-3%2F40

taking reciprocal...
x=-40%2F3
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