It would be: 18 -x
18-(2/x)
(x + 2)(x - 9)
4 - (x + 6)
7-x
x^2+3x-18 (x+6) (x-3) = 0 x=-6 x=3 a= 1 r= -6 s=3
(-6) x (-3) = 18 (-10) x (-9) = 90 18 - 90 = -72
X - 7 = 11 X = 11+7 therefore X = 18 18 minus 7 equals 11.
You need to be careful in how you write such questions as it is important to know if you mean: x - 12/2 = 18 or (x-12)/2 = 18 If x - 12/2 = 18 then x = 18 + 12/2 x = 18 + 6 x = 24 If (x-12)/2 = 18 then x - 12 = 18 * 2 x - 12 = 36 x = 36 + 12 x = 48
18/x
(x2 + 7x - 18) = (x + 9)(x - 2)
5x2 - 27x - 18 = (5x + 3)(x - 6)
-6 x -3 = 18 + (-6) = 12