2. 3x - (4y - 7x + 3y) - 2z
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Answer:
question is incomplete
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Explanation:
3x - ( 4y - 7x + 3y ) - 2z
By opening the brackets, we obtain
3x - 4y - 7x + 3y - 2z
By adding / Subtracting the like terms, we obtain
3x - 7x - 4y + 3y - 2z
= -4x - y - 2z
Answer:
3x - (4y - 7x + 3y) - 2z = -4x - y - 2z
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