Question

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Subtract from (4x- 5y+3z) from the sum of (9x+2y-3z), (-10x+ y- z) and (2x+ 3y+ 7z).

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Answer 1

9x+2y-3z + -10x+y-z + 2x+3y+7z

= x+6y+3z

x+6y+3z - (4x-5y+3z) = x+6y+3z -4x+5y-3z

= -3x+11y

Answer 2

Question:

Subtract (4x- 5y+3z) from the sum of (9x+2y-3z), (-10x + y - z) and (2x+ 3y+ 7z).

Answer:

(-3x + 11y)

 

Step-by-step explanation:

First let's find out the sum.

(9x + 2y - 3z) + (-10x + y - z) + (2x + 3y + 7z)

= (9x - 10x + 2x) + (2y + y + 3y) + (-3z - z + 7z)

= (x) + (6y) + (3z)

= x + 6y + 3z

Now subtraction:

(x + 6y + 3z) - (4x - 5y + 3z)

= (x + 6y + 3z - 4x + 5y - 3z)

= (x - 4x + 6y + 5y + 3z - 3z)

= -3x + 11y

∴ Answer is -3x + 11y