Answer
$x+2y=-3$
Work Step by Step
$(y-y_1)=m(x-x_1)$
$(y-0)=(-\frac{1}{2})(x-(-3))$
$y=-\frac{1}{2}x-\frac{3}{2}$
$2y=-x-3$
$x+2y=-3$
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