It is 7.2
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If you mean: x squared -14x +45 then when factored it is (x-9)(x-5)
When what equals 9: the 45/x, the 45, or the x? In the case of 45/x = 9, 45/x = 9. In the case of x = 9, 45/x = 5. In the case of 45 = 9, the case of a false statement is being considered, and therefore 45/x is undefined.
If you mean: 9(x-1) = -45 then 9x-9 = -45 and it works out that x = -4
1 x 45, 3 x 15, 5 x 9, 9 x 5, 15 x 3, 45 x 1 = 45
Assuming that's -4x - 5x + 9, the answer would be x =1As -4x - 5x + 9 = 0Making it 9 = 5x + 4x, or 9 = 9x, cancel out the 9's, making x = 1.If it's -4x - 5 x 9, the answer would x = 11.25As -4x - 5 x 9 = 0Making it 45 = 4x, divide the 45/4, which would give you 11.25.