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)
9000 = (2/3)*x // - (2/3)*x
9000-((2/3)*x) = 0
(-2/3)*x+9000 = 0
9000-2/3*x = 0 // - 9000
-2/3*x = -9000 // : -2/3
x = -9000/(-2/3)
x = 13500
x = 13500
| 2x-1=34 | | 115-5x=13x+15 | | 2x+18+x+3x=180 | | 7(5-x)+x=4+3x | | 2x-27=3(2-3x) | | 4x-6+4x-5+1=0 | | 6x-5+5x=4 | | 6x-5+5=4 | | 8x-16=11x-46 | | 5x+12=9+4x | | x/4+6=-10 | | X^3-9x^2+23x-18=0 | | x=-15y-17/2 | | 3x^2-6x-13=0 | | 4(v+4)=-6v-44 | | 7y+8=120 | | (x^2/4)+4x=0 | | 2x+35=6x-15 | | 48x^4-128x^3-60x^2-12x-1=0 | | U/6=9.6 | | 0,1-0,2(x-6)=0,8(x+1/2)-0,3 | | 5*(a*3b)= | | (9a^2-4y^2)/(9a+6y) | | x^6-2x^5+2x+1=0 | | 6m^8-4m^5=-0 | | X-4=2x-x+8 | | -15/2y+1+5=y | | 21y2/7y | | 21y^2/7y | | x+(x/3)=20 | | 2v+6+7=5(v-1)-(v-6) | | 20x-30y+-50x+2y=1 |