Answer
$y=4/3x+7/3$
Work Step by Step
We first isolate y by adding 7 on both sides to get that $3y=4x+7$. We now divide by 3 on both sides to isolate y and get that: $y=4/3x+7/3$. We then plug in the different values of x:
$4/3(4)+7/3=23/3 \\\\ 4/3(5)+7/3=27/3=9 \\\\ 4/3(6)+7/3=31/3$