a) x - 2/3 = 1/6

x = 1/6 + 2/3

x = 5/6

b) 2x + 1/2 = -5/3

2x = -5/3 - 1/2

2x = -13/6

x = -13/6 : 2

x = -13/12

a) 11/24 - 5/41 + 13/24 + 0,5 - 36/41

= ( 11/24 + 13/24 ) + ( -5/41 - 36/41 ) + 0,5

= 1 - 1 + 0.5

= 0.5