If it's not what You are looking for type in the equation solver your own equation and let us solve it.
x2+x3+x=90
We move all terms to the left:
x2+x3+x-(90)=0
We add all the numbers together, and all the variables
x^2+x^3+x-90=0
We do not support expression: x^3
| 3x+6-8x=20-5x | | 5z-46=114 | | 8)-3(4r-8)=-36 | | 6k+5=41 | | -15(x-3)=-120 | | -8=w/2+2 | | 2g+5=-9 | | 10(v+6)=9 | | j2+ 13=16 | | 12=4-2a | | 5x-46=66 | | 9=-3+3w | | 6X-8=-4x+7x= | | 3(g2+2)=(3g-2) | | 2x+175=10×-9 | | -6=4+p/3 | | 6x+16=7x-20 | | 12x+21-7x=-21-2x | | 3(x)+12=90 | | x+4/8=28 | | -2+y=-21 | | 2.9x-5.8+9x=9.9x-12.8 | | 4.5x+3.5=4x+7 | | 5^3x=25^x+2 | | x-0.5*x*0.23=5782 | | 0.5x+26=7x | | 1/2(x+52)=7x | | 1.3x+2=2.39 | | 6(x-2)+2=2(3x5) | | x+52=7x | | 7x-4=2+8x | | x*1.25=12 |