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)
3*a+7*a+3 = 23 // - 23
3*a+7*a-23+3 = 0
10*a-20 = 0 // + 20
10*a = 20 // : 10
a = 20/10
a = 2
a = 2
| -w-6-4w=-46 | | 3d-4+4d=10 | | 8+7b+b=80 | | 5x^2-9x-25=-7 | | -2+2a+3a=-12 | | 5k+10+4k=10 | | 3n-7+2n=53 | | -4k-8-k=-63 | | 6d-2+4d=-2 | | 7b+8+5b=104 | | -k+9-4k=9 | | -6b-3+7b=-2 | | 11=a+2a+8 | | -3t+8-3t=2 | | -5a-9+4a=0 | | -18=5t-7t-10 | | 7+t+7t=47 | | 7m-8+2m=-53 | | 13=x+2x+1 | | 7=3x+5x-1 | | 27=-6a+2a+3 | | 4d+5+3d=19 | | -3+t-6t=-3 | | 2-4k+7k=8 | | 11=a+6a+4 | | 5r^2-33r+47=7 | | -4d-9+3d=-13 | | 45=2d+2d+1 | | 3n+3+4n=59 | | -3-7x-4x=63 | | 6+6b+2b=-74 | | -9+5w+4w=-72 |