Thread: Equation in N2
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Old July 3rd, 2009, 02:00 AM
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Quote:
Originally Posted by dhiab View Post
Solve In :
If we rearrange the equation we find

y = \frac{1000 - 19x}{13}.


You need to substitute an integer x in order to get an integer y.

For this to happen, 1000 - 19x needs to be a multiple of 13.

Have a go from here...
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