If it's not what You are looking for type in the equation solver your own equation and let us solve it.
l+15=3
We move all terms to the left:
l+15-(3)=0
We add all the numbers together, and all the variables
l+12=0
We move all terms containing l to the left, all other terms to the right
l=-12
| 3x+4−2x=35x+7 | | 20+2x=1x=56 | | -5z+9+13z-1=32 | | –9w–17=46 | | 52(6x−5)=32.5 | | w/4-9=-11 | | -4(c+-2)=-15 | | 12x+206=x-12 | | n/4-10=7 | | 16^2x-3=2^3x+8 | | 16n-9n+6=55 | | 4+r=5 | | 12f=720 | | 18+1x=4x | | 3t+7t+6=12+4t | | x−5+14=4 | | 3(m-6)+1=10 | | x+3/10=-4 | | 3/4xN=24 | | 9+5n=54 | | -7x-3x+2=8x-x-8 | | 16q−12q−q−1=20 | | 11+3k=29 | | 11(x=5)=12x+11 | | 5x–17=8x–2 | | 4n-1/5=-3 | | 4x+2-(12x+8)+2(5x-3)=16 | | h+48/6=-2 | | -72+18x+x^2=0 | | 10x+2(8−3x)=30+2x | | 3(6+y)=6y | | -3x+30=-54 |