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)
4*a+6 = 3*a+15 // - 3*a+15
4*a-(3*a)-15+6 = 0
4*a-3*a-15+6 = 0
a-9 = 0 // + 9
a = 9
a = 9
| 5d-1=d+47 | | -6x+10=6x-50 | | -3+a=6a+47 | | 6t+3=5t+8 | | a+2=-4a-58 | | k+8=-12+6k | | 3X^2-21x+18=0 | | 2x+7x-90=180 | | 7+5t=7t+1 | | 2m-10=-6+4m | | 2k-1=7k-21 | | 2n-10=-7n-1 | | 2(x+6)-10=12 | | 9+5n=4n-2 | | 5m-1=11+m | | 2a-1=-31+7a | | 12/2(1+2) | | 4x-5=-9+6x | | 10-6d=-2d-10 | | -7-4b=-3b+0 | | -2n-3=3n-43 | | 4w-3=-3-6w | | 4+6d=-4d+64 | | -16-18=3 | | 5w-7=2w-7 | | 6b-6=7b-16 | | 5m+3=23-5m | | -5k+10=16-3k | | 3-5a=3a+11 | | -7x+9=7-6x | | -7-4x=5x-115 | | 2x+9=31-2x |