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Maths Puzzle
Numerical Ability
7x + 5y = 13
3y - x = -13
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Having hard time understanding the process used to solve this problem. I dont have any issues with 2 (x-1)(2x+3) but 3 is throwing me off.... any help would be appreciated...
(x-1)(2x+3)(3x-2)
How do I multiply and write the result in simplest form of 2 over 9 . 4 over 5?