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Verified answer
1. (3x + 7y + 2) - (x + 2y + 3)= 3x - x + 7y + 2y + 2 - 3
= 2x + 9y - 1
2. (2x - 3y - 2) - (x - 2y + 1)
= 2x - x - 3y + 2y - 2 - 1
= x - y - 3
3. (2x + y - 2) - (3y - 5x)
= 2x + 5x + y - 3y - 2
= 7x - 2y - 2
maaf kalo salah
= 3x - x + 7y - 2y + 2 - 3
= 2x + 5y + (-1)
2.2x - 3y - 2 - x + 2y -1
= 2x -x + -3y + 2y + - 2 -1
= x + -y + -3
3.2x + y - 2- 3y+ 5x
= 2x + 5x + y -3y + -2
= 7x + -2y -2