22-8x=2x+9
y=3Lnx
(x^2)-((x+0.5)/6)>(x-0.5)(x+0.5)
3/7=-18/n
5(2w+1)รท3=11
x^2+3x-10
9m=7m+12
x^2-6x-7
x^2-18x+81
9-2x=-5