If it's not what You are looking for type in the equation solver your own equation and let us solve it.
55-n=78
We move all terms to the left:
55-n-(78)=0
We add all the numbers together, and all the variables
-1n-23=0
We move all terms containing n to the left, all other terms to the right
-n=23
n=23/-1
n=-23
| 30=9w-3w | | 1/x=3/x4 | | .1+.001x=1.01 | | 2(x-5)=90 | | 5.00-0.65x=10.00-0.45x | | -38=7x+4 | | -3=-12/j | | 70+3x+(x+4)=180 | | 14y+14-3y=-20 | | 4x+36=36+4x | | 6p=8p+6 | | 4(x+8)-12=12 | | 12x+-14=-38 | | 8y1=31 | | 26+103–x+2x=180 | | -9+6=1r | | x-8|4=3 | | -1-3.2p=43 | | 8n+21=-43 | | 21-5r=-19 | | 24m÷6=4m | | 9=p/2+13 | | 8(u+8)=8u+8 | | 5t=9+6t | | 2^3x-1=128 | | (5x+15)+(8x-42)+(x)+(x)=360 | | q/4=3.23 | | -44x=-27-1.7x | | 3x-8=28 | | 10h-8=9h | | 8=20-3z | | 7+x/9=70 |