If you mean: 5x+9+7x-11 then it simplifies to 12x-2
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To simplify expression 5x + 9 - 7x - 11, you can combine the x terms (5x - 7x) to get -2x, and combine the constant terms (9 - 11) to get -2. Therefore, the simplified expression is -2x - 2.
7 & 11 have no common factor: both are prime.
minus 4 plus 9 = 5, so 5x
Set up the equation and solve: -27 = 8x - 5x (next simplify by subtracting 5x from 8x)) -27 = 3x (next divide both sides of the equation by 3) -27/3 = 3x/3 (next simplify and solve) -9 = x
5x^2 + 14x - 3x^2 - 9 = 2x^2 + 14x - 9
5x +50x