If it's not what You are looking for type in the equation solver your own equation and let us solve it.
8.3+x=13.8
We move all terms to the left:
8.3+x-(13.8)=0
We add all the numbers together, and all the variables
x-5.5=0
We move all terms containing x to the left, all other terms to the right
x=5.5
| 19x+6=19x+6 | | -5x+6x-8x=-150 | | yXy=1Xy | | 5x=2+5x | | 75÷2x=16 | | 1+6x=8x-5 | | -25x=255 | | 2y–7=-5 | | 1/5(25x-20)=5x-6 | | 1,6x+6,25=x+7 | | 4z-9=5z+18 | | 2/5.x=3 | | x/17=10/34x= | | p/2–1=5 | | x/17=10/34 | | /0.3r=2.1 | | x/2–1=5 | | -4-2-5x=4 | | x-5.3=4.5 | | 7g+12+9=4g+57 | | 8y+8=2y-42 | | 21=5t-4 | | x/10-4=-1 | | x/13=40/65 | | 10k-13=4K+47 | | (6x+1)+79=180 | | -33-4n=6+3n | | 3.5851e-7=1 | | x+2.3=9.7 | | 2c-32=9c-3c | | -7-7v=2v+65 | | 3.5851e-7=0 |