If the point (3, 4) lies on the graph of the equation 4y = ax + 7, find the value of a.
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Answer:
4y = ax + 7
Given, that the point (3,4) lies on the given line. Hence, (3,4) is a solution of the given equation. Replacing x=3 and y=4 in the equation:
4(4) = a(3) + 7
=> 16 = 3a + 7
=> 3a = 9
=> a = 3
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