Question

(7x - 4y) - (-2x - y)​

Answer 1

Step-by-step explanation:

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Answer 2

Answer:

$(7x - 4y) - ( - 2x - y) \\ 7x - 4y + 2x + y \\ 9x - 3y \div 3 \\ 3x - y \\ ans = 3x - y \: or \: 9x - 3y$