If it's not what You are looking for type in the equation solver your own equation and let us solve it.
688/516 = 4/b
6.5;5
26/u = 65/10
5/s = 9
32/m = 16/15
| (y*1-y*2)=m(x*1-x*2) | | 688/516=4/b | | 300-5k=k | | (2x+1)(4x-3)=(4x-3)3 | | 26/u=65/10 | | 32/m=16/15 | | 3y^2+5x+6y+13=0 | | 5/s=9 | | S/s=9 | | 49/28=14/k | | 18/4=9/d | | 3x+5z=12 | | 3+4x=7n+3 | | 1/2=3/f | | 44/33=s/21 | | (-mv)/3m | | 2p+3p+2p=-4 | | 83=6xk-13 | | m+8=6 | | G/42=21/18 | | T/5=4/20 | | 4(x^2)=20+2x | | 3r^2-13r+12=0 | | 2(2x+9)=-22(x-5) | | 3x*x+(-2x)+(-1)=0 | | 1.2+0.3x=0.24(10+x) | | 8(9x+7)=-33(x-4) | | X-3/2-5=x-7/3 | | 20(5x+11)=28(x-3) | | 11y=3y+72 | | 18(-12x-19)=4(x+5) | | 11y=3y+20 |