If it's not what You are looking for type in the equation solver your own equation and let us solve it.
u in (-oo:+oo)
3/13 = u/4 // - u/4
3/13-(u/4) = 0
3/13-1/4*u = 0 // - 3/13
-1/4*u = -3/13 // : -1/4
u = -3/13/(-1/4)
u = 12/13
u = 12/13
| 3a+2a+c+b+2a+3a+5b= | | 7=r(r-6) | | 13/5=9/v | | 5x^2+16x=4x^2-64 | | 4s^2=64 | | 11/u=8/17 | | 3w/2=-9 | | -5/3y=-10 | | 2.1*1.7*1.3ft= | | 2.1ft*1.7ft*1.3ft= | | 81X^2-X=0 | | 1/6(5x-6)=3 | | 4(1/x)=3+(5/2)(1/x) | | (7x-3)=38 | | M+6/m^2-6m | | 5t(8t+3)=0 | | 6(k-3)=-18 | | 19t^2-110t-190=0 | | 5t-12=28 | | 13t^2-130t-160=0 | | 13t^2-130t+160=0 | | -6=w-4/5 | | -6=w+155 | | 40-31y=5(2) | | 3t-2=31 | | 3/5*25/36 | | x+1/4=-4/5 | | 65=-w+155 | | -7x+23=3-2(4x-7) | | -w+29=264 | | 5x=2m^2 | | y=-(7/4)x^2 |