If it's not what You are looking for type in the equation solver your own equation and let us solve it.
2a+1-3a=-12
We move all terms to the left:
2a+1-3a-(-12)=0
We add all the numbers together, and all the variables
-1a+13=0
We move all terms containing a to the left, all other terms to the right
-a=-13
a=-13/-1
a=+13
| 0.316=2xB | | 5(g+6)-3=-4g | | 3(c+6)-2=22 | | -24-1/8p=3/80 | | 2n-288.5=8n-193.5 | | 14x-70=20x | | 5a-23+2a=5 | | -3y+10-2y=-20 | | 20x+5=120 | | 2a+1+3a=-12 | | 4-4=8m+2m | | C=18.9-2.1r | | 6x2−14=−5x−10 | | -18x-15=-87 | | 9x+2x-7=2x+5 | | 9-(5x-2)+(4x-7)=-31 | | 14-2(8x-2)+20x=-4 | | 10+5(x-3)-10x=-45 | | n-(-9.88)=18.88 | | -7-2x-3x-4x-9=11 | | 5x-15-3x+9=18 | | 24-2x=14x-+24 | | 6x+7-1-2x=24 | | m=10=70 | | 3x-11-5x+x+7=-31 | | s-(-69)=367 | | -x+293=121 | | 20x+5=80 | | 175=62-v | | 173-x=67 | | 8x=56 | | 8x=56 48 64 7 0.14 |