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)
2*k-10 = 7*k+5 // - 7*k+5
2*k-(7*k)-10-5 = 0
2*k-7*k-10-5 = 0
-5*k-15 = 0 // + 15
-5*k = 15 // : -5
k = 15/(-5)
k = -3
k = -3
| -3b+1=-b+9 | | 8-x= | | -(x+4)-(13-4x)=3(x-4)-5(8+x) | | 5a-4=44-7a | | 7w+1=-w+49 | | 2m+6=-34+7m | | 3n+1=7n+25 | | -2+5a=7a-14 | | -5t+2=-7t+22 | | -6x+5=-4x+9 | | 28=u+50 | | 2+4n=6n+0 | | -b+8=4b+3 | | 7n+5=-4n+93 | | -7b-4=-136+4b | | -6+2n=-6n+74 | | -b+4=2b-14 | | 3a-3=2a-8 | | 3-7x=7x-151 | | -10-3t=7t-50 | | 7w+6=3w+26 | | 5-6t=7t+109 | | 3x+9=-15-x | | -1+7t=-7t+97 | | -10+7t=-3t-10 | | -16x^2-8x-1=0 | | -7b+1=5b+61 | | 4b-1=-25+6b | | 7w+5=6w+6 | | 4+7d=-d+4 | | -3+7b=-5b+81 | | x+6=-24+4x |