if the point ( 3 , 4 ) , lies on the graph of the equation 3y = ax + 7 , find the value of a. Share with your friends Share 3 Shrey Choudhary answered this Here x = 3 and y = 4 so,3(4) = a (3) + 712 = 3a +712-7 = 3a5 = 3aa = 5/3 = 1.6 13 View Full Answer santhulovely answered this give point ( 3,4 )given equation 3y=ax+7for the given point to lie on the given equation it should satisfy the equation. So, put x=3 and y = 4 in the equation . then u will get a = 5/3 2 Santroop Tanwar answered this x=3 & y=43multiply4=amultiply3 + 712=3a +712-7=3a5=3aa=3divide5 2