If it's not what You are looking for type in the equation solver your own equation and let us solve it.
p+2.78=5.78
We move all terms to the left:
p+2.78-(5.78)=0
We add all the numbers together, and all the variables
p-3=0
We move all terms containing p to the left, all other terms to the right
p=3
| 3(m-5)+6=2m-8 | | 5+2x=7+8x | | r+607=701 | | 19=n/21 | | 5x-91=3x-77 | | 9.86=u+4.66 | | z+243=976 | | 5.8y+5.8=29 | | -11+5x=-16 | | 16.2=-1.3+7y | | u+913=-84 | | w/5.12+8=12 | | 552=-24q | | 5(3x+2)+1=15x+11 | | d-959=-467 | | -28w=-532 | | -6f=708 | | 20c=860 | | y-492=-356 | | 6d=40 | | p+-113=6 | | 7=h/17 | | t/16=18 | | 12=r/16 | | 30=k-27 | | 4+3=11x | | 6-96t^-4=0 | | m/29=28 | | w/11=-15 | | -18b=666 | | 30u=690 | | u+248=794 |