8+x = 0,1
x = 0,1-8
x = -7,9
x+2/3 = 0,1
x = 0,1-2/3
x = 1/10-2/3
x = 3/30-20/30
x = -17/30
5/16-x = 5/2
x = 5/16-5/2
x = 5/16-40/16
x = 35/16
x = 2 3/16
