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The number of solutions ....
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Author:  ram [ Tue Jul 28, 2009 7:01 am ]
Post subject:  Re: The number of solutions ....

2x + y = 40 and x < = y.

So, x can take at the maximum be equal to y.

when x = y, 2x + y = 2x + x = 40.
or x = 13.33.

x and y are both positive integers. Hence, the maximum value that x can take is 13. And the minimum value that y can take is 14.

There are 13 solutions to the equation.

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