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)
(k-15)/7+1 = 0
(k-15)/7+(1*7)/7 = 0
k+1*7-15 = 0
k-8 = 0
(k-8)/7 = 0
(k-8)/7 = 0 // * 7
k-8 = 0
k-8 = 0 // + 8
k = 8
k = 8
| 2x^2/71=-163 | | -8(y-9)=-9y | | 4*7/2 | | 4(2x-2)=8x+k | | (3/4)b-(1/5)b=11 | | (3x+4)+(2x+1)+(x-16)=90 | | 7+3x-10=-12 | | (5+x)(10+x)=54 | | 3x-4=2(7x+7) | | 3a+2=18 | | [k-15]/7=-1 | | x+sqrt(2x-6)=sqrt(8x+9) | | 2(y-1)=y+6x(x+1) | | Kx^2+(k+1)*x+k=0 | | x(x-1)+y=2x-6 | | (3x+4)+(2x+1)+(x-16)= | | 8(t-2)+6t=7(2t+5)-9 | | x(x-1)+y=3x-5 | | (4m/4)-(m/6)=(7/2) | | 40x+5(1.25)=555 | | 3r+2t=24 | | 9*w=-18 | | 1x-(2+3x)=4x-6 | | -n+5= | | 7y+1-y=4+5y+7 | | 7a*a= | | 3x-6x+15=2x-(x+1) | | 5y+2.5=-10 | | -3(1-x)+2(-2x-3)=-2(x+4) | | 2(5x+3)-5= | | 2(y-1)=y+5x(x+1) | | 3(x-4)+4(4-x)= |