If you mean 8+11x = -14 then the value of x works out as -2
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11x + 8 = 8x + 20 3x + 8 = 20 3x = 12 x = 4
It is: x^2 +11x +24 = (x+8)(x+3) when factored
11x - 8 = 8 + 1 Simplify the right hand side: 11x - 8 = 9 Add 8 to both sides: 11x = 17 Divide both sides by 11: x = 17/11 or 16/11
x = 8
4x + 8 + 7x + 12 = 11x + 20