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)
-(5*a)-(5*a)-5 = -105 // + 105
105-(5*a)-(5*a)-5 = 0
105-5*a-5*a-5 = 0
100-10*a = 0 // - 100
-10*a = -100 // : -10
a = -100/(-10)
a = 10
a = 10
| 7k+5+2k=23 | | 3x+7x=2x+5 | | -3t+3+6t=39 | | -6b+4-3b=-32 | | -5a-5+7a=-13 | | 2d-2+d=-14 | | -b-1+6b=-21 | | 4+7x-5x=6 | | 6+3b+3b=-60 | | 8+2m+2m=-28 | | 5a+10+2a=87 | | -46=-3k-5k+2 | | 6+6n+4n=76 | | 5+5w+7w=125 | | 6x-6+7x=59 | | -7k+5-2k=5 | | 14y-12x+4x-6x+16y-4+-7+3y-p= | | 46=4w+7w-9 | | -9=5b-4b-6 | | -2=d+d-2 | | 28=5a+6a+6 | | 10+2n-7n=-30 | | -5+4a+4a=75 | | 7t+6+5t=-30 | | 8=-7k+6k-4 | | 5-5m+2m=-25 | | -14=6m-4m+10 | | 9=7m-4m+6 | | 9=-2b+5b-9 | | 5w+10+4w=109 | | 1+n+2n=22 | | 3k+3-2k=2 |