If it's not what You are looking for type in the equation solver your own equation and let us solve it.
q in (-oo:+oo)
5/9 = q/13 // - q/13
5/9-(q/13) = 0
5/9-1/13*q = 0 // - 5/9
-1/13*q = -5/9 // : -1/13
q = -5/9/(-1/13)
q = 65/9
q = 65/9
| 3x+21.5=116 | | -6(8-6)=-192 | | 9-8x-x^3=0 | | 5y(8y-3)= | | 2Z+Z=3 | | -6(8-6)=192 | | -120=45t-5t^2 | | w/4-w/5-1/5=16/15 | | 6n+10+n+n= | | 5x+3x-6x-5=3 | | 3x+28=115 | | 120=45t-5t^2 | | lnx+ln(2x)=ln(3x) | | 3(5v-3)+2v=-145 | | f^2-20f-41=0 | | 7x+9y=1560 | | -4p^2+80p=-148 | | X-8X=12 | | 7y+3+5y+6= | | 5x/8=35 | | (x^3+x)*x-1=0 | | 4/7u=56 | | 60+x+120+z=360 | | 3y+1*27= | | 2r^2-50r-42=0 | | 2m+5=8m-7 | | X=-12+8X | | x+2x+3x-3+8=6x-11 | | 3(1+4n)-5=98 | | z^2-20z=27 | | 8x-(x-2)3=3x+18 | | 9r^2+4=328 |