Answer:
y=-1 is the equation of the line
Explanation:
x + 2y = 3 and
solve for x and y to get intersection point
multiply first equation by -2


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y=-1



x=5
intersection point is (5,-1)
(2, -1) and (5,-1)

Slope = 0 (horizontal line)
So equation becomes y =y1 value
y=-1 is the equation of the line