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)
10 = a+9 // - a+9
10-a-9 = 0
1-a = 0 // - 1
-a = -1 // * -1
a = 1
a = 1
| t-2=4 | | w+10=19 | | m+5=-7 | | b+9=7 | | a-1=5 | | b+5=-4 | | d+8=4 | | x^2-(52/9)x=(62/9) | | 6=k+9 | | n+10=20 | | 3(x-5)+2x=30 | | 5p-3=3p+7 | | -8=t+3 | | w+4=16 | | 4+m=13 | | m+9=11 | | -4=m+3 | | 15=d+5 | | -6+k=4 | | k+5=9 | | -5x=100 | | b+5=-1 | | 2=d-3 | | -7k=-28 | | b+5=-2 | | a-1=-13 | | -11=m-3 | | k-1=9 | | 5w=-35 | | 3+w=9 | | 3+w=-7 | | 14=w+6 |