1. Mathematics
2. Algebra
3. Basic Algebra
4. 159869

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1.) Simplify 2x*2 - 18y^2 divided by 3y -x

2.)Perform the task (y^2 - 2y + 1 divided by y^2 - 1) multiplied by (2y^2 + y - 1 divided by 5y - 5)

3.)Perform the task (8x - 5)/(3x - 1) + (4x + 1)/(3x -1)

4.)Perform the task 4/(x^2 - x - 6) - 4/(x^2 - 4)

5.) Perform the task (2y - 5)/(6y + 9) - 4/(2y^2 + 3y)

6.)Perform the task 2x/(x^2 - 9) + 3x/(x^2 + 4x + 3).