SOLUTION: If point (d,3) lies on the graph of 3x-y=9 what is the value of d?

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Question 436990: If point (d,3) lies on the graph of 3x-y=9 what is the value of d?
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
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If point (d,3) lies on the graph of 3x-y=9, what is the value of d?
:
Replace x with d and y with 3 in the given equation
3d - 3 = 9
3d = 9 + 3
3d = 12
d = 12%2F3
d = 4
:
:
Check this in the original equation: 3(4) - 3 = 9