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)
(1/3)*x-6 = (2/3)*x+9 // - (2/3)*x+9
(1/3)*x-((2/3)*x)-9-6 = 0
(1/3)*x+(-2/3)*x-9-6 = 0
-1/3*x-15 = 0 // + 15
-1/3*x = 15 // : -1/3
x = 15/(-1/3)
x = -45
x = -45
| a/3+4=12 | | 2x+7=2x-9 | | (3x-17)+98=180 | | x=9-3y/4 | | 33a+10=28a-5 | | 17+2x=31-5 | | 9-3y/4=x | | 4-9c+3c=58 | | 14u=2/3 | | 4a-98=a/2 | | 16x^4+8x^2-3=0 | | -4.40=1.2(t+1) | | 7x=192 | | 15x+26x+8=0 | | 3y+87=3+87y | | 9z+(40z+5)+5z=180 | | 54=36+a | | v+6=-8 | | 10=x-2 | | 2x+7(2x-12)=60 | | -3=-4+u | | ln(25x)-ln(x-1)=2 | | 3y+y-2y= | | 8(3x-1)=40 | | 5x+5=85-10x | | -7=9+v | | w-9=10 | | x+9=-20 | | 3=y+9 | | ln(1/x)+ln(2x^3)=ln(8) | | 6^4/4^3/3^6 | | 6=2+y |