If it's not what You are looking for type in the equation solver your own equation and let us solve it.
u in (-oo:+oo)
u/9 = 7/13 // - 7/13
u/9-(7/13) = 0
u/9-7/13 = 0
1/9*u-7/13 = 0 // + 7/13
1/9*u = 7/13 // : 1/9
u = 7/13/1/9
u = 63/13
u = 63/13
| 3a+7+2a=22 | | 16v-7v=18 | | 3v+7v-1=19 | | 27v^6=18x^3v^8u^5 | | -28=4v | | 5/8=u/13 | | 3x-8=90+x+2 | | N^2+4n-14=0 | | 12a-11a+1=19 | | cos(60)=3/x | | 8x+9+21+7x=180 | | 2v-6=3v-5 | | x^2-40x-48=0 | | 8/3=5/x | | 8+8x+9x-1=180 | | 2x+3=5y+1 | | 2xy+5yx=14 | | Log(5x)+log(6x)=log(120) | | 18x+5=19x | | X=20000000+.32x | | 4x/3,8x-20 | | 49-10x=19+5x | | x-14=-x-2 | | 8a+7b=54 | | x+x-10=5(x-4) | | 5x-17=97 | | X=.32x+20000000 | | t/4-6=13 | | 6a-5b=-62 | | 4/5x^2=5 | | 6x-14=-15x | | x^2+10=-12 |