If it's not what You are looking for type in the equation solver your own equation and let us solve it.
9x(xx2)=90
We move all terms to the left:
9x(xx2)-(90)=0
We move all terms containing x to the left, all other terms to the right
9xxx2=90
x=90/1
x=90
| 7x+5+x=98 | | 204=-8(-4-5p)+3p | | 9(7-5x)=34 | | -8+76+12x=68 | | 4a+7a=15 | | 25÷8x=-8 | | x/8+3=-4 | | -5x+4x-9x=0 | | 15÷8x=-8 | | 34=-4(7s-3) | | 5s-8=47 | | 4b-9-8b=29 | | x/5-2.5=17.5 | | 9y+9y=108 | | 7(3d-5)=27 | | 4y^2+36y=81 | | (29b-2)-7(4b+4)=-5 | | 8r–14=26 | | -27=3z-7z | | X+4x+(5x+25)=180 | | -2(u+8)=3u-21 | | -137+3x-9x=49 | | -3.8x=54.34 | | w-(w+9)=3/4(8w-2-) | | -8x-76+12x=68 | | -x=-1/9 | | 120/100=x/50 | | 5y+1=9 | | -8r–14=26 | | -196-3x-7x=54 | | -83-15x+10x=37 | | t+18=8 |