Simplify each expression as much as possible by applying the distributive property and/or combining like terms.
3. 8y + 2x + 5x - y
4. 2(6x - 7)
5. 6y - 2x + 6x + y
6.-3(2x - 1)
7. 3(4x + 1) - 8x
8. 3x2 - 9x + 6x2 + 4x
10.-2(5x + 4) + 9 - x
9. 6(2x + 3) + 5x - 4
PLEASE HELP

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