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)
7 = x+7 // - x+7
7-x-7 = 0
-1*x = 0 // : -1
x = 0
x = 0
| 1/3d=-4/21 | | 9+a=1 | | t+7/10=23/15 | | 7/12=w+1/2 | | 2x+26+x=180 | | b+2=-2 | | d+2=30/11 | | 4m=-16 | | 39/5=b+4/5 | | t+4=25/6 | | w/-5=6 | | -1+a=-2 | | 3x^2+4=4x | | w+1/9=25/63 | | d+1=16/11 | | -1/3w=-1/9 | | b-3/7=-31/7 | | b+3/7=13/14 | | 1/3+m=1 | | x-2=-19/10 | | a+1=-2 | | a-4/5=-3/2 | | t+5=-5 | | d=-3/4 | | k+6=17 | | 1/4t=-1/40 | | 3x-36+2x+26=180 | | 50=-0.591x^2+17.432x-26.216 | | d+3/7=25/42 | | x-5/6=-13/30 | | b+1/2=5/6 | | d-4/5=21/5 |