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-4*a-(3/7) = -80/7 // + -80/7
3*a-4*a-(3/7)-(-80/7) = 0
3*a-4*a-3/7+80/7 = 0
11-a = 0 // - 11
-a = -11 // * -1
a = 11
a = 11
| -4a-1/5=199/5 | | -4a-1/5=-201/5 | | -4a-1/4=-193/4 | | -4a-1/2=-11/2+2a | | -4a-1/2+a=-3/4 | | -4a-1=6a-6 | | -4a-1+5/7a=-127/35 | | -4a+9=3a+4 | | -4a+8/9+2a=224/9 | | 2x+45=180 | | 3x+1+7=12 | | -4a+7=-29 | | -4a+2/9+a=-79/9 | | -4a+2/7=-39/35-1/2a | | -4a+2/7-2/3a=-292/7 | | -4a+2=6a+32/11 | | -4a+2=4 | | -4a+10+1/5a=602/45 | | -4a+1/8=-23/8-a | | -4a+1/7=-2/7a+29/21 | | -4a+1/6=-109/66 | | -4a+1/3=13/3 | | -4a+1/2+1/2a=39 | | -4a+1+6a=21 | | -42=-7d+1/5d-8 | | -4=t+7 | | -4=m-2m+6 | | 82-5x=22x+22 | | -4=k+3 | | -4=d-5 | | -4=a+4 | | -4=3m-m-3 |