Question

how much less than x-4y+3z is 3x-6y-z
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Answer 1

Answer:

-2x + 2y +4z

it is clear that x -4y +3z is gretaer than 3x -6y -z

let the difference be a

so, a=  (x -4y +3z) - (3x -6y -z)

  = -2x + 2y+ 4z

Answer 2

Refer to the attached image....