If it's not what You are looking for type in the equation solver your own equation and let us solve it.
t in (-oo:+oo)
(12/13)*t+3/26 = 81/78 // - 81/78
(12/13)*t+3/26-(81/78) = 0
(12/13)*t+3/26-27/26 = 0
12/13*t-12/13 = 0 // + 12/13
12/13*t = 12/13 // : 12/13
t = 12/13/12/13
t = 1
t = 1
| s+112=23 | | X+(-12)=-174 | | 5(x-2)=4x+9 | | X-(-47)=-12 | | -x+5x-6=0 | | 2/3=x/16 | | x/25+1/3=-1/3 | | x/6=-31 | | 2x(x+9)=4x | | -20y-28=36y-9 | | -5x-25=55x-11 | | x-4(3-2x)=5x+8 | | 3y+21=42y+140 | | 6y+15=28y-14 | | 8+3x=5y | | 6y+15=28y+14 | | -6y+14=25y+5 | | -5x+7y=-12 | | 12x+21=-17-102 | | 12x+21=-17+102 | | -9y+12=-85y+17 | | 111-4x=32x+19 | | -6y-10=5y+45 | | -6y-10=5y+10 | | 10y-12=9y+14 | | 20y-24=9y+36 | | -x-4=-12x+3 | | x-10+2(x-2)-3(x-3)=5 | | 6y-15=12y-16 | | 3z+11=7z-11 | | -2x+3=4x+5 | | -y+9=3y-1 |