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Verified answer
A)-4x + 5y - 10x + y
= -14x + 6y
b)
(5x + 7) - 3 (2x - 5)
= 5x + 7 - 6x + 15
= -x + 22
c)
8x - 2 (-4x + 7)
= 8x + 8x - 14
= 16x - 14
d)
-3 (2x - 5) + 2 (-x + 4)
= -6x + 15 - 2x + 8
= -8x + 23
e)
2x^2 - 3x + 5 - 3x^2 + x - 9
= -x^2 - 2x - 4