If the point (3, 4) lies on the graph of the equation 3y = ax + 7, find the value of a

The point (3, 4) lies on the graph of the equation

Therefore,

Put x = 3 and y = 4 in the equation,

3y = ax + 7,

Hence,

3 * 4 = a * 3 + 7

12 = 3a + 7

3a = 12 – 7

3a = 5

a = 5/3