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)
((2/1)/8)*k = 7 // - 7
((2/1)/8)*k-7 = 0
(2/8)*k-7 = 0
1/4*k-7 = 0 // + 7
1/4*k = 7 // : 1/4
k = 7/1/4
k = 28
k = 28
| 3(2x+4)=7 | | -1/6/7g=13/15 | | 2e-3=e+1 | | 4/3×3/4=5k | | (3x+4x)+(9-5)= | | 0.09x-0.04=2.3 | | 4x-8=2x-(-3-12) | | 5(2x+3)=6x+15+4x | | 7+2x+5x=63 | | 7/8z=3/1/2 | | 13g+4=12g | | 12/5*5 | | -44=10(y-10) | | 3x+6x=25 | | 38/5+m-4=22 | | 7+4(5-9)= | | b/3-7=-12 | | 5*-12/5 | | 100=2(.25x-10) | | -6x^2-x+12=0 | | 80=2(.25x-10) | | 4x+3(x+18)=110 | | 0.5h+4-3h+1=-5 | | log2/log1.009375 | | 12xa=60 | | 2(X-4)+2=12 | | 10x+5=2x | | 8.3m+19.4=-12.7-37m | | 73/5+m-4=22 | | y-1=1/3(x-5) | | 2/3x-101/3 | | (2+y)*dx-(2-x)*dy=0 |