Correct Answer: Option D
the two lines must meet at the point where the x and y co-ordinates are same for both the equations
inorder to solve the equations simultaneously, the substitution method must be applied
therefore from the first equation, we get
x+y=0
x = -y
substituting this equation in thesecond given equation we get
2(-y)-y+3=0
-2y-y+3=0
-3y+3=0
-3y=-3
y=1
substituting y = 1 in any of the two given equations gives us the corresponding value of x
x + (1) = 0
x = -1
therefore the point of intersection of the two straight lines is at the cordinates (-1, 1)
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