If it's not what You are looking for type in the equation solver your own equation and let us solve it.
((-x)^2-(5*x)+25)/((x+5)^4)
800;25
2.1-(0.3*x) = 0.7*x
(X+1)/2-((X-1)/3) = 1/4
((C^7*c^18)/(c^3))*c^10 = 0
| 3=(56-x)-321 | | C^7*c^18/c^3*c^10=0 | | C^7*c^18/c^3*c^10 | | C-6(x+5)=15 | | 9a+-5-5a+8=0 | | (b+2)(b+2)=2.8284 | | A^7b^8=0 | | 200.00+0.5x=75.00+0.10x | | .25x+.50(73-x)=23.50 | | 5x-1=14-109 | | (2x^5y^2)(5xy^3z^2)(2yz)=o | | 0.25=1.5-5x | | .10x+.12y=900 | | x/53=90 | | 44=t | | x+58=-x+4 | | 3b^2-8=10b | | 3=1/5x=-5 | | 12X+8X=12X+5X+3 | | 7e-4=3 | | 13+.5=-3 | | r/15-16=16 | | 3x^2-12x+16= | | -4x^2+9y^2-24x-72=0 | | .66x+.75=.60(x-.625) | | 13+.57y=-3 | | 13=7x+6x | | (-3b/a^4)^2 | | 4x-6=9x+3 | | 7/4x=14 | | 2cos^2-1-cosx=0 | | 3x-x+8-4-5x-2=10 |