4/9 x 2/2 = 8/18 5/18 + 8/18 = 13/18
|x+9|=18 either x+9=18 or x+9=-18 so x=9 or x=-27 When |a|=b then a=b or a=-b
(x^18 - 6x^9 + 18)(x^18 + 6x^9 + 18)
x + 9 = 8 Therefore, x = 8 - 9 x = -1
-2x+9=x+1-x........-x-3x+9=1.....-9...-9-3x=-8-3x/-3 | -8/-3\ /........\ /x=8/3
x + 10 = 18 18 - 10 = x 18 -10 = 8 x = 8
-(x - 9)(x + 2)
18. 9 x 0 = 0 S0, 9 + 0 + 9 = 18
It is x+9, provided that x is not -8.
(18 x 9) - (19 x 8) = 10
18 = 9 x 2, so LCM of 18 & 9 is 18. 8 = 2 x 2 x 2; so 18 & 8 share a common factor of 2, so the LCM = 18 x 2 x 2 = 72.
8.