Question

Subtract x–2y from thesum of-3x+5y-3z and 2x-7y+3z

Answer 1

October 16

Answer: 2x + 2z

Step-by-step explanation:

[( -3x + 5y - 2z ) + ( 2x - 7y + 3z )] - ( x - 2y + 3z )

= [ -3x + 5y - 2z + 2x - 7y + 3z] - ( x - 2y + 3z )

= [ -3x + 2x - 7y + 5y - 2z + 3z ] - ( x - 2y + 3z )

= [ -x - 2y +z ] - ( x - 2y + 3z )

= -x - 2y + z - x + 2y - 3z

= -x - x + 2y - 2y + z - 3z

= 2x + 2z

Answer 2

Answer:

- 2x

Step-by-step explanation:

$sum = - 3x + 5y - 3z + 2x - 7y + 3z \\ = - x - 2y$

$subtract = - x - 2y - x + 2y \\ = - 2x$

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