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14-06-2017
Mathematics

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If the point (a,3) lies on the graph of the equation 5x + y = 8, then a=

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28-06-2017

To determine the value of a, we substitute the corresponding y-value of the point to the equation of the graph and solve for x. The given equation is a linear equation so its graph should be a line. We calculate "a" as follows:

5x + y = 8
5a + 3 = 8
5a = 8 - 3 = 5
a = 1

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