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-(7*a) = 5*a+106 // - 5*a+106
10-(7*a)-(5*a)-106 = 0
10-7*a-5*a-106 = 0
-12*a-96 = 0 // + 96
-12*a = 96 // : -12
a = 96/(-12)
a = -8
a = -8
| -10+t=-4t-55 | | 3+6n=3n+3 | | -6+x=7x-66 | | 2a+10=66-6a | | w+9=-3w+17 | | -4a+8=7a+107 | | -5-2w=-6w+43 | | 2d+7=7d+12 | | w+9=-6w-12 | | -7+n=5n-39 | | -5+7k=-k+35 | | 2p-2+p=-29 | | 1+7a=3a+33 | | 2b+10=-4b+64 | | -6a-9=31-a | | -4k-4=-58+2k | | 5-d=-6d+20 | | 4w-4=w-37 | | 6+d=7d-18 | | 5n+9=-15+3n | | k+3=15+7k | | -4a+9=49+6a | | 13=313 | | -4-5w=2w-67 | | 4a-7=-139-7a | | 6d+5=16-5d | | -5x-3=-19-3x | | 4b-4=-15+5b | | 5n+3=6+4n | | 7w-6=3w+26 | | 3-10=-12 | | 5k-1=-7k+119 |