Răspuns:
b)
1 + 6x/5 - 4/5 - x = 2/5
5 + 6x - 4 - 5x = 2
x + 1 = 2
x = 1
d)
x + x/5 - 2/5 - 1 = 1/5
5x + x - 2 - 5 = 1
6x - 7 = 1
6x = 8
x = 8/6 = 4/3
e)
2x + 1 - 3x/2 - 1 = 3/2
4x + 2 - 3x - 2 = 3
x = 3
f)
4 + 3x - 4 - 4x = 3
-x - 1 = 3
-x = 4
x = -4