If the equation of the plane which passes through the intersection of – InterviewSolution

1.	If the equation of the plane which passes through the intersection of the planes x–y+z–3=0 and x–2y–3z=0 and is parallel to the plane x+y+9z+3=0, is ax+y+bz+c=0, then a+b+c is equal to
Answer» If the equation of the plane which passes through the intersection of the planes $x - y + z - 3 = 0$ and $x - 2 y - 3 z = 0$ and is parallel to the plane $x + y + 9 z + 3 = 0$ , is $a x + y + b z + c = 0$ , then $a + b + c$ is equal to

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