If it's not what You are looking for type in the equation solver your own equation and let us solve it.
81+86+t=255
We move all terms to the left:
81+86+t-(255)=0
We add all the numbers together, and all the variables
t-88=0
We move all terms containing t to the left, all other terms to the right
t=88
| 27+2w=62 | | 3+5(c-2)=5c+6 | | 8/n=44/33 | | 4(-1/2x+7)5x=15 | | 1=-b+6 | | -6.5k=-24/25 | | 2/3(m-30)=4/3m+10-2/3m | | 84+84+n=342 | | X-4=-16+5x | | -13+p=5 | | 12x+6=3(4x+4) | | 6a+30=-1+2a | | x/5=21/15 | | 5(n-2)=-10+5n | | u+10=34 | | 2y+11=41 | | 72=−r | | -23=3y+4 | | x+14=-90 | | A=200+6t | | (3x-1.2)=(5x+10) | | 6/r=2/9 | | 3-2x-8=-5+4x | | 4m-3m=-34+29 | | 7/9x-2/3x+1/3-2/9=1/3 | | 914=27x | | 9x+6=1x+2 | | x+243=70+x+103+110+4x | | 5+8r=13+4r | | 2/x+4=3/x-2 | | A+2b=60 | | 11x+11=11x+11 |