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+5)/7 = 5/3 // - 5/3
(k+5)/7-(5/3) = 0
(k+5)/7-5/3 = 0
(3*(k+5))/(3*7)+(-5*7)/(3*7) = 0
3*(k+5)-5*7 = 0
3*k-20 = 0
(3*k-20)/(3*7) = 0
(3*k-20)/(3*7) = 0 // * 3*7
3*k-20 = 0
3*k-20 = 0 // + 20
3*k = 20 // : 3
k = 20/3
k = 20/3
| 8y-21=-9(y+8) | | 5x-40=160 | | x^2-x-2.72=0 | | 6v+3+4v=-27 | | x/4=65 | | 4/x=65 | | 9(x+2)=6x | | 84=6u | | 24=3x+9 | | 3y^2+44y=871 | | 3y=6(8)+b | | -6+4b=1+3b | | 15=22+t/3 | | 216=28-w | | (9x)=27 | | (n+7)2= | | (n+7)(n+7)= | | 6(8x-4)-2(x-3)= | | (9x+10)=127 | | [x-10]=3 | | y=3(2)+9 | | tan(x)-2x=0 | | 7x+4x=-14+4x | | (9x+10)=137 | | 3v-4=-16 | | -6(1-5v)=64 | | 8h+10h=3h+25 | | d/3=d+1/6 | | 1a(-5)+4b=-4 | | 5(4m+1)-2m=-13 | | .5+8=57 | | 4w+15=67 |