If it's not what You are looking for type in the equation solver your own equation and let us solve it.
a in (-oo:+oo)
3*a-9 = 6*a-24 // - 6*a-24
3*a-(6*a)-9+24 = 0
3*a-6*a-9+24 = 0
15-3*a = 0 // - 15
-3*a = -15 // : -3
a = -15/(-3)
a = 5
a = 5
| 10+2x=-5x+31 | | 4b+3=-3b+17 | | -2x-2=-6x-18 | | -7k+7=-4k+19 | | -6-4w=4w-14 | | 4.6q-5.4-5.7q=2.1q-2.1 | | 5d+8=-d+26 | | -7+3d=-6d+83 | | -3t+4=32+t | | w+1=26+6w | | -7a-5=-3a-17 | | 2-3x=5x-30 | | 3+6d=-6d+135 | | -8*8/35=b | | -5+3w=6w+16 | | 4+t=3t-18 | | -2w+7=2w-29 | | n+2=-46-5n | | 7/8*5=b | | -6m-10=-19+3m | | 4x+8=4+3x | | 6t+8=18+7t | | 10-2x=x-26 | | 3+5a=-4a+84 | | 6k+10=43+3k | | 4k+2=32+7k | | 3d+5=33-d | | 6m+4=5m+4 | | -7x+9=7x-145 | | -13+5+x=-4+15 | | 2x/4x^2-2x | | 2d+5=-7d-94 |