If it's not what You are looking for type in the equation solver your own equation and let us solve it.
x in (-oo:+oo)
18-((2/3)*x) < 15 // - 15
18-((2/3)*x)-15 < 0
(-2/3)*x-15+18 < 0
3-2/3*x < 0 // - 3
-2/3*x < -3 // : -2/3
x > -3/(-2/3)
x > 9/2
x in (9/2:+oo)
(9/2:+oo)
| x^2+2z=3 | | 4y+22+2y+11=90 | | 7-8-11= | | -4(n+2)+11=-2n-7 | | Log^3(4x-8)=3 | | 3+5-9= | | 27-12=5(x-2) | | t=2k+2z | | 3y+8+2y-3=90 | | q=36/p | | Q=36/9 | | 3y+8+2y-3=180 | | 2log(X-3)=log(x+4)+log(x-4) | | x^2+4x-21=2 | | 36/p=p-5 | | 0=-25x^2+15x+125 | | 28=(w+2)(w) | | 6x^2+22x=-20 | | 6x+5=-2x^2 | | 3.4(x-2a)-2.1(x+3)=2.4 | | 61x^2+1=y^2 | | x+x+68+2x=180 | | -7m^2-2m-28=-8m^2-4 | | 5x+3+5x-3=90 | | 2(x)+x+68=180 | | 2x+x+68=180 | | 5x+3+5x-3=180 | | 28-19=3(x-4) | | 1/8(8x-6)=-1/3-7/3 | | 5-5lnx=6 | | 5-lnx=6 | | -4-(9*-4+8)= |