If it's not what You are looking for type in the equation solver your own equation and let us solve it.
5a-55=20
We move all terms to the left:
5a-55-(20)=0
We add all the numbers together, and all the variables
5a-75=0
We move all terms containing a to the left, all other terms to the right
5a=75
a=75/5
a=15
| 12s+44=-100 | | 62/l=9*8 | | h(2)=-16(2)^2+68(2)+6 | | 42+2k=66 | | F(x)=7x-27 | | -3a+20=-22 | | 1b-0.17b=0.83b | | -8a-8=-48 | | 6a-14=-32 | | 1xx3=-1,331 | | ?x3=-1,331 | | 4⋅2^(−t5)=288 | | xx3=-1,331 | | -3a-11=49 | | -7+e=-3 | | 2n+12+(n+6)=3(n+6) | | 6x+10=-30+2x | | 24x+16=8(3)+2 | | 4z=-8/ | | 5-10x=-5x-10 | | 4(x-6)=104 | | n–13=7 | | 5+-10x=-5x-15 | | 7z=-74 | | 2-2c=18 | | h+30/6=7 | | 6+-5n=46 | | q/6-2=6 | | 2(r+65)=58 | | -4=r/20-50 | | 4=y/4-1 | | 4=-3f+1 |