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)
10/3 = k/9 // - k/9
10/3-(k/9) = 0
10/3-1/9*k = 0 // - 10/3
-1/9*k = -10/3 // : -1/9
k = -10/3/(-1/9)
k = 30
k = 30
| 9x-8y=-56 | | 987654321+98x=10987654321 | | x^2-375=0 | | 2694+6x=3788 | | C^2+b=36 | | 5x+7=2(2x-1)+9 | | 75000/150 | | 7(m+73)=313 | | 150/75000 | | 24y+10.50x=90 | | 15=-16t^2+30t | | 5.4/72 | | x+2x+4x=140 | | 3434798+(432+9x)=23456345723458734295623458763249875623498756 | | 5/2x-2/3x-1/3 | | 3x+18=12x+9 | | 75*6= | | 750/1250 | | y=x^2+34x+278 | | -8*-15= | | 75f^2+210f+147=0 | | (x+2)+4=35 | | tan(11)=400/x | | 1555x=43540 | | 24x^2y+34xy+12y=0 | | -x+2=6(x-2) | | 700-35=450+15w | | (5x)(-3x-5)(5x)=y | | 5/8x=15/22 | | X^2+65= | | 3(x-6)+5x=-2x+12 | | x+2=5x+28 |