If it's not what You are looking for type in the equation solver your own equation and let us solve it.
-5x^4x+6=21
We move all terms to the left:
-5x^4x+6-(21)=0
We do not support expression: x^4x
| 3(c+2}=36 | | 10x-23=5x-7=180 | | (x+2)^2-6=36 | | (4*1)+2y=-6 | | 46=33+h | | 7z=24 | | 14+27y=20y^2 | | 9=243^2x+1 | | 4z+1.1=20.8 | | 5x-5=5x+9 | | 90-u=50 | | x+1.2x=1 | | 6b-18=36b= | | 21=6+a | | x=2(x-1.5) | | 5/15=6/x | | 21=6=a | | 9/15=x/35 | | 60=m-25 | | 5(9d)=800 | | 10x+5=16.45 | | 7=–3–m | | (q)/(19)+15=17 | | 7j−–28=98 | | 5x+3x+12=68 | | 4x-2=4x-44 | | -6=3/2b | | 4(4d)=160 | | g–8=25* | | 6x5+9x7-59+69x420-69420=20 | | N=L(1-d)=$55.00(1-0.22) | | 5(x-7)=5x=35 |