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)
5-(2*k) = 3*k+15 // - 3*k+15
5-(2*k)-(3*k)-15 = 0
5-2*k-3*k-15 = 0
-5*k-10 = 0 // + 10
-5*k = 10 // : -5
k = 10/(-5)
k = -2
k = -2
| -5n+5=-49+4n | | 3m+3=-8+4m | | 4-7x=7x+74 | | -5t+9=6t-123 | | 6+2n=-4n-60 | | 7m+6=-82-4m | | 5a-6=-28+7a | | -8-4d=6d+72 | | 6n-5=n+35 | | -3w+7=3w-47 | | 3n+4=39-2n | | 5t-2=-2+4t | | 3a-8=40-3a | | 4+3a=7a-36 | | 9-7w=4w-2 | | 2k+8=-16+6k | | 8+6x=7x+12 | | 7m+6=-m+38 | | -7b+9=5b-3 | | -4x-10=-43+7x | | -2d+5=0+3d | | 3n-1=9+n | | -4w+8=-2+6w | | 2k+7=4k+7 | | 7w-1=w+5 | | 2x+3=-13+6x | | 3a-1=23+a | | 3+5w=-2w+31 | | 6-6n=3n-39 | | 2k-4=5k-7 | | t+2=-3t-2 | | -t+9=39-6t |