Question

( 15x + 7y ) - ( 7x - 15y )​

Answer 1

Step-by-step explanation:

15x+7y-7x+15y

8x+22y

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Answer 2

Answer:

$(15x + 7y) - (7x - 15y) \\ \\ = 15x + 7y - 7x + 15y \\ \\ = 15x - 7x + 7y + 15y \\ \\ = 8x + 22y \\ \\ = 2(4x + 11y) \\ \\ = 4x + 11y$

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