If it's not what You are looking for type in the equation solver your own equation and let us solve it.
c(20)=65
We move all terms to the left:
c(20)-(65)=0
We add all the numbers together, and all the variables
c^20-65=0
We do not support ecpression: c^20
| 6×x-42=0 | | |3-r/2|=-4.5 | | x*1.4=4.00 | | 4m-7=16 | | 3p+14=-22(p=12) | | 4.9t^2+20t-300=0 | | 2(x-6)+10=2(2x+2) | | 4.9^2+20t-300=0 | | x/100=2/20 | | 4.9t^2+20t+300=0 | | 6n+8=40(n=6) | | (4D^4-4D^3-23^2+12y+36)y=0 | | r²−8r=−8 | | (6+v)(2v+3)=0 | | 200/x=17/3 | | 200/x=52/3 | | 15x+(-12x)+3x=+ | | 5x-3/2x=5 | | 12k^2+32k–44=0 | | 65-4=8(2+1/4d) | | 0.02*x^2-30*x=-18000 | | 5÷2x=20x= | | X=169+3y | | 13u-6u=28 | | 3p+9=34 | | 7x^2-25x-126=0 | | 0.5*240+8*(240-x)=136 | | 4x+6=14,x | | 90+2x-2+x-5=180 | | 2x^2+9x-7+8/x-2=0 | | X/2-x/2=2/3x-2 | | 2x/x+15=4/5 |