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A term by a number is not a problem. 9x multiplied by 3 is (9*3)x, which is 27x
9x is the lowest common multiple. (9x * 1 = 9x) (x * 9 = 9x)
20-9x=n
This statement is already nearly factored. The best we can do is pull out the 9 from each term:9x + 9y + 72 = 9(x + y + 8)
(9x)2 +9x/(45x)2 +81= 9+9x/86