If it's not what You are looking for type in the equation solver your own equation and let us solve it.
-1+3x^4=91
We move all terms to the left:
-1+3x^4-(91)=0
We do not support expression: x^4
| -5x+51=-21+2x | | 12r=7 | | 6x+46=90 | | 6(x+4)+45=9x-15 | | |6-2f|=-5 | | 6x+46+10x+22=180 | | 8.69/100=c | | v/2-9=20 | | (6x−8)+(5x+21)=90 | | 0.5x+0.25(x+16)=4+0.75 | | 80=(5x-15) | | x/4+1/4=5 | | (3x+1)=(5x+-9) | | 34x-2=100 | | 6k-12=-2 | | 22+2a=37= | | –n−1=–2n | | -9t=4-10t | | 3-+6p=7(p+6)-5 | | -5.6x(x-2.5)=11.2 | | 3b=6+b | | 3y-13=2y+4 | | 6x16=2x+16+4x | | m+10/9=2 | | 10x+12=83 | | 4(-5-3v)=-4(3v+5) | | -4q=-3q+4 | | 2/3(4x−7=−2 | | 30=w/5+15 | | 10=4+a/3 | | (15x+7)(29x-3)=180 | | 9+14z=219 |