If it's not what You are looking for type in the equation solver your own equation and let us solve it.
19a-1214a=-57
We move all terms to the left:
19a-1214a-(-57)=0
We add all the numbers together, and all the variables
-1195a+57=0
We move all terms containing a to the left, all other terms to the right
-1195a=-57
a=-57/-1195
a=57/1195
| 2x-9=-18+5x | | -x+16=2x-5 | | 6n-8-3=19 | | 8+y=31/3 | | -x+9=33-4x | | -x-25=-6x | | 5x+19+7=2-4+5x | | 0.25x+2/5x=0.5x-9/30 | | 1-4x=4x-23 | | 0.25x+2/5x=0.5x-9/230 | | 7=d-31/6 | | -0.3(2y+1)=17-0.7 | | 5g=5+35 | | j+13=j | | 21=-y/9 | | -9m+10(m+3)=-7(m+10) | | 7+2z=3z-3 | | 15x²+2x-8=0 | | 3/2x+5=5-2(x+7) | | x-35000=1/2+1/10+1/20+35000 | | 7=d–31/6 | | x=1/2+1/10+1/20+35000 | | -3/7w=12 | | 2r+16/6=4r-8/4 | | 80=4w+12 | | 1000n+240=600 | | x=x=20 | | -4(x+2)-10=5 | | 1=3c-2 | | 3(4z+7)=27 | | v/10+1/2=3/2 | | 2-50x=3x+16 |