If it's not what You are looking for type in the equation solver your own equation and let us solve it.
-12+r/4=-12
We move all terms to the left:
-12+r/4-(-12)=0
We add all the numbers together, and all the variables
r/4=0
We multiply all the terms by the denominator
r=0
| 42+11x+3+80=180 | | x-4x=-20 | | 2x+6=180-x | | 6-2y=27 | | 7p-14=9p | | -6+14x=6x+6 | | 4x+2-3x=x+6-4 | | 7x+15=-3x+25 | | 2x-8+76=180 | | 2+2.50x=14.5 | | 27+x+67+90=180 | | 9-7q=-10q | | 5x+4=-6=3x+20 | | 3x-6-x=2x-18 | | 3x+2=-4x | | 4+4r=-24 | | –5=v–12 | | Y=3x3-x2+2 | | x+6+8=22 | | 7x-55=3x+53 | | 6k-3=-75 | | 27+x+67=180 | | 1+2m=-13 | | 3x+7=5+3x | | 12v+8=-6 | | 31-13=3(x-6) | | 59=m/9+52 | | 2x+4=3x-1=3x+6=3x+2 | | 6v-2=3v-3+7 | | -7m-35-2(m+7)=-9m | | 20=q/3+18 | | 2x-8+76=360 |