If it's not what You are looking for type in the equation solver your own equation and let us solve it.
55-n=51
We move all terms to the left:
55-n-(51)=0
We add all the numbers together, and all the variables
-1n+4=0
We move all terms containing n to the left, all other terms to the right
-n=-4
n=-4/-1
n=+4
| 2x+302x+54=90 | | 6z-18=3z | | -4x-6(-9)=16 | | 2x+44=96 | | x^2-8x+16/x^2-16=10/30 | | 180=7x3(-6x+15) | | 27+x-3x+47=10 | | 3/4m+10=40 | | -1/9(z+3)=2/3(z-2/3) | | 18=2j+2 | | 3x-5(x-2)=-8+2x+6 | | y=-3/5(-5)+1 | | -6x-3(-1)=9 | | |6-x/6|=11 | | 4x+38=8x-6 | | 4(10x+25)=420 | | 21+2.5w=6+5.7w-3, | | 36x^2-60x=25 | | 5(4x+6)-9=121 | | 12(4x−12)=5 | | a-a+4a-a=6 | | 4x+6=12x-32 | | 5f+2(f+3)=10 | | -8v-12v=-20 | | 12x-2+110=180 | | 13x-33=18 | | 5x(x-7)=-60 | | 5+8x-2-3x=-7 | | y÷3+18=5 | | .1x-3/4=-1.75 | | 3x-423=3 | | 4x+2x-1=17 |