If it's not what You are looking for type in the equation solver your own equation and let us solve it.
a in (-oo:+oo)
a+6 = 15 // - 15
a-15+6 = 0
a-9 = 0 // + 9
a = 9
a = 9
| -1+t=2 | | a+2=13 | | t-3=4 | | w-1=-2 | | b+3=-2 | | -6x(64-8/1+7)= | | 6/2=21/7 | | 13=n+2 | | 3w=-15 | | 9=k+9 | | .02(62)-.08s=.06(s+9) | | 84=2x+18 | | -5b=20 | | 2=m+1 | | -5m=-55 | | -5w=55 | | 2w=-8 | | 0.6(3x+8)=1.9-(x-3) | | x^2-8x+16=9 | | k-3=-15 | | 9=m+7 | | 9+k=6 | | -5=k-5 | | 15=t+9 | | 10+v/3=16 | | w-8=-14 | | 9+k=0 | | t+3=14 | | 8+m=16 | | 10/4=15/6 | | N/9-8=-6 | | (150/100)+(x/32) |