Question

i) [5 - 3x + 2y - (2x - y)]-(3x - 7y +9)​

Answer 1

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■》 Given :--

[5 - 3x + 2y - (2x - y)]-(3x - 7y +9)

●Solution :---

= [5 - 3x + 2y - 2x + y]-(3x - 7y +9)

= 5 - 5x + 3y - 3y + 7y - 9

= -5x + 7y - 4 . ( Answer )

Answer 2

Step-by-step explanation:

[5 - 3x + 2y - (2x - y)]-(3x - 7y + 9)

[5 - 3x + 2y - 2x + y]-(3x - 7y + 9)

[5 - 5x + 3y] - 3x + 7y - 9

5 - 5x + 3y - 3x + 7y - 9

5 - 9 - 5x - 3x + 3y + 7y

-4 - 8x + 10y