Evaluate:
7x - 9y + 3 - 3x - 5y + 8
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Arrange the polynomial with like terms together and combine them.
(7x - 3x) - 9y + 3 - 5y + 8
= 4x + (- 9y - 5y) + 3 + 8
= 4x - 14y + (3 + 8)
= 4x - 14y + 11
Hence, 7x - 9y + 3 - 3x - 5y + 8 = 4x - 14y + 11
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Evluate:
b2y - 9b2y + 2b2y - 5b2y
abx - 15abx - 10abx + 32abx
3x2 + 5xy - 4y2 + x2 - 8xy - 5y2
Add :
5a + 3b, a - 2b, 3a + 5b