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)
(-13*x-39)/13 = 5 // - 5
(-13*x-39)/13-5 = 0
(-13*x-39)/13+(-5*13)/13 = 0
-13*x-5*13-39 = 0
-13*x-104 = 0
(-13*x-104)/13 = 0
(-13*x-104)/13 = 0 // * 13
-13*x-104 = 0
-13*x-104 = 0 // + 104
-13*x = 104 // : -13
x = 104/(-13)
x = -8
x = -8
| 2+3(2-x)=x(x+2) | | z-51/5=113/4 | | 23-(6-[4-9])= | | -9-90=j | | 2/5p=7 | | -9-90= | | (3a)(a^2)(a^3)+(2a^2)(a^4)= | | 72x=12x-7x+2 | | -476=-7x+7(-7x-20) | | y=2/3(14-12x) | | 2/3(14-12x) | | 180-2x+15=3x+10 | | J-9=90 | | x=2z#z=54 | | 104-9x=-76-13x | | D=8*3.14h | | 5x+25=30-6x-18 | | x+.40x=115 | | -15=-5/8y | | -39+3x=-3(1-7x) | | 7x-5(6x+41)=-458 | | 3(8y-1)=6(4y+5) | | 3-3y=20 | | 2(4x-4.2)=9x-8.4 | | 5x+25=30-6x+18 | | 21+15x=-65+17x | | X/16=45/40 | | 3x+38=12-61 | | 18x+9y+45z= | | -6y+36=3(y-3) | | 300-20(t)=360-40(t) | | 2x^2+1650=3x |