If it's not what You are looking for type in the equation solver your own equation and let us solve it.
k in (-oo:+oo)
82 = 5*k+5*k+2 // - 5*k+5*k+2
82-(5*k)-(5*k)-2 = 0
82-5*k-5*k-2 = 0
80-10*k = 0 // - 80
-10*k = -80 // : -10
k = -80/(-10)
k = 8
k = 8
| -5x+9-3x=-63 | | -6=-3t+5t+2 | | -6=4n-3n-4 | | 2m-6+4m=54 | | -77=7x+3x-7 | | 6b-1+6b=35 | | 2+5a+3a=-62 | | -15=x+2x-9 | | -7=-7w-6w+6 | | 7m+6+7m=6 | | -4x^2+21x+5=0 | | -10-4w+2w=-18 | | 1+6a+6a=1 | | -3+3t-2t=-1 | | 9+n+3n=1 | | 5+3t+6t=104 | | 4x+1-5x=-4 | | 9+2x+6x=9 | | x-16/45=28 | | 7t+9+4t=42 | | 7x+3+4x=58 | | 43=7m+7m+1 | | -5-6n+7n=0 | | -1+6a+a=-57 | | -64=2b+4b-10 | | -3x+3+5x=1 | | 7+7t+t=87 | | 72=5b+3b+8 | | t+9+2t=36 | | 11+x/3=28 | | 61=5n+3n+5 | | a-7+3a=13 |