If it's not what You are looking for type in the equation solver your own equation and let us solve it.
-8a-2-3a=-13
We move all terms to the left:
-8a-2-3a-(-13)=0
We add all the numbers together, and all the variables
-11a+11=0
We move all terms containing a to the left, all other terms to the right
-11a=-11
a=-11/-11
a=1
| 0=4b^2-28b-32 | | -10=-5v-5v | | -3v+32=7(v-4) | | -7x+70=9x | | x+222=342 | | x/5+7=77 | | 2(v-7)-6v=-26 | | 4=8m-4m | | j4+ 9=12 | | v=36-3v | | 5(x+4)=20+5x | | 1.3x-3.6=4/5.x+2 | | 12x+10=14x+2 | | 7x+70=9x | | -2x/9=18 | | 5(x+1)+2=3x-6 | | 12x10=14x+2 | | 8=34-6+33=48a | | -14=2(x+2)-5x | | 12=2(4-2x) | | 2(y-1)^2+8=80 | | 40=1/3(8g+30)+2 | | 2/3+x+15=17 | | 3+f/12=7/2 | | 2w^2-2w+12=(w=2)^2 | | -30=-8y+6(y-7) | | 1x=7x+1 | | x-10=-3x+38 | | -8u+4(u+5)=32 | | -10+4=3y | | -8w+3(w-4)=-32 | | 1/2(6x-4)=12 |