Subtract $3x$ from both sides of the equation to get:
$4y = -3x + 12$
Now, divide both sides by $4$ to isolate $y$:
$y = -\frac{3}{4}x + 3$
Now we can see that the slope of the line is $-\frac{3}{4}$ and the y-intercept is $3$. To graph the line, start at the
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