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If the eqution of the plane passing thro...

If the eqution of the plane passing through the line of intersection of planes `2x - 7y + 4z -3 =0, 3x - 5y + 4z + 11 =0` and the point ( -2,1,3) at `ax + by +cz -7=0`, then the value of `2a +b +c -7 ` is `"____________"`.

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JEE MAINS PREVIOUS YEAR-JEE MAIN 2021-MATHEMATICS (SECTION B)
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