If it's not what You are looking for type in the equation solver your own equation and let us solve it.
x in (-oo:+oo)
x/(-4)-13 = -25 // + 25
x/(-4)-13+25 = 0
12-1/4*x = 0 // - 12
-1/4*x = -12 // : -1/4
x = -12/(-1/4)
x = 48
x = 48
| 1+23=-3(5x-8) | | d/52 | | 4(2x+8)=-46+14 | | x+29=7x+47 | | A=18+3 | | 3/4e-12=-3 | | 120=3r+5(1+4r) | | -(5x-3y+3)= | | 0.6=0.5+y | | 1.4=y+0.5 | | 6y^2-9xy=0 | | 1.3=0.5+y | | 1.4=y+0.8 | | C=-a | | 8(d-2)+2= | | -7xy-6xy-3x+3y= | | 0.7=y+0.1 | | 5+y=c | | 5x+4=2(2x-5) | | 7y-6.1+1.1y-1.4y-2= | | 1.3=0.4+y | | 1.2=0.8+y | | 5g-3-9-5g= | | 0.5=0.1+y | | 4-6x-3(2y+3)= | | x+2x=400-(3x+4x) | | 1.3=0.6+y | | 2b-4-7b-9= | | -4x^2-5x^2+4y-3y= | | 0.5=0.2+y | | 1.2=0.7+y | | 4/2y=7/5 |