Odpowiedź:
a) x + 6 = 20 - 2x - 12 + 2x
x + 6 = 8 | - 6
x = 2
b) 3x - x -3 - 3x = 6x - 12
- x - 3 = 6x - 12 |+3
- x =6x - 9 |-6x
-7x = - 9 |:(-7)
x = 1,29
c) 4x + 10 = 15 + 2x |-10
4x = 5 + 2x |-2x
2x = 5 |:2
x = 2,5
d) [tex]\frac{x}{2}[/tex] - [tex]\frac{x}{5}[/tex] = [tex]\frac{x}{10}[/tex] - 2 |x10
5x - 2x = x - 20
3x = x - 20 |-x
2x = - 20 |/2
x = -10
e) x - 2x + [tex]\frac{1}{2}[/tex] = [tex]\frac{1}{3}[/tex] |x6
6x - 12x + 3 = 2
-6x + 3 = 2 |-3
-6x = -1 |/(-6)
x = 0,17
Szczegółowe wyjaśnienie:
