If it's not what You are looking for type in the equation solver your own equation and let us solve it.
2x-1+x4+7=90
We move all terms to the left:
2x-1+x4+7-(90)=0
We add all the numbers together, and all the variables
x^4+2x-84=0
We do not support expression: x^4
| 42-3d=-30 | | b+6/7=19/14 | | -7-11n=147 | | 5p-7(5p+5)=3+8p | | 5(x-9)=8(x+8)-8 | | 10−(x−4)2=10 | | 9r-5=157 | | -4-6x=-2(6x-7) | | 6=1-2n5 | | 7+n/7=5 | | 0=2x-0.5x^2-0.25/x^2+0.5 | | y-20=18 | | X+(X+20)+(210-3x)=270 | | 12x+5=-211 | | (x^2+8x+7)(x^2−7x+10)=0 | | 2|t-3|-3=7 | | -9x+11=-178 | | 4/2=6/x | | -6+7n=-2n+3(3+2n) | | 5^2x-5^x=-4 | | -9(-3+x)=144 | | 5/9(f-32)=35 | | 10x-2(3x+5)=5 | | c-7=5 | | -(3z-(12z+5))=5+(8z+10) | | 18-3y=156 | | -3z-(12z+5)=5+(8z+10) | | (3y-7)(5+y)=0 | | 25-3n=-4+5(-3-5n) | | l-10=0.8 | | l+80.2=0.8 | | 5(-n-7)-5=-22+4n |