Answer:
(0, 3)
Step-by-step explanation:
The y-intercept occurs when [tex]x=0[/tex]. To find the y-coordinate of the y-intercept, simply set x to 0 and solve for y:
[tex]7(0)+3y=9,\\3y=9,\\y=3[/tex]
Therefore, the y-intercept of the given equation is (0, 3).